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‘We have been heard’: Montana youth score a major climate victory in court

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Friday, January 3, 2025

Montana’s Supreme Court has ruled that the 16 youth who sued the state in a landmark climate change lawsuit have a constitutional right to “a clean and healthful environment.” The 6-1 decision upheld a lower court ruling in Held v. Montana, in which the plaintiffs argued that the state violated that right, enshrined in the state constitution in 1972, by limiting analysis of greenhouse gas emissions during environmental review of fossil fuel projects. Writing for the majority, Chief Justice Mike McGrath rejected a spate of arguments against the plaintiffs — including that they lacked standing to bring the suit and that Montana’s contribution to climate change is negligible in a global context. “Plaintiffs showed at trial — without dispute — that climate change is harming Montana’s environmental life support system now and with increasing severity for the foreseeable future,” McGrath wrote in a 48-page opinion handed down December 18. Declining to regulate the state’s emissions because they are negligible would be like declining to regulate its mining pollution into Lake Koocanusa simply because 95 percent of the total pollution reaching the lake originates in Canada, he wrote. Lead plaintiff Rikki Held, the only plaintiff who was 18 when the suit was filed in 2020, hailed the court’s decision in a statement as “a victory not just for us, but for every young person whose future is threatened by climate change.”  “We have been heard,” she added. The suit was brought by Our Children’s Trust, a nonprofit public interest law firm based in Eugene, Oregon. In a statement, lead attorney Nate Bellinger called the ruling “a victory for young people and for generations to come. The court said loud and clear: Montana’s Constitution does not grant the state a free pass to ignore climate change because others fail to act — this landmark decision underscores the state’s affirmative duty to lead by example.” Montana Governor Greg Gianforte denounced the ruling, arguing in a statement that it would lead to “perpetual lawsuits that will waste taxpayer dollars and drive up energy bills.” The Montana Department of Justice, which represented the state in the lawsuit, called the ruling “disappointing, but not surprising,” according to the Montana Free Press. Held v. Montana made history last year when it became the nation’s first constitutional climate case to go to trial. Experts have said it could lay a foundation for, or bolster, similar lawsuits — especially in states that, like Montana, have a constitutional guarantee to a clean and healthful environment. One of those states, Hawai’i, settled a youth climate lawsuit last June, requiring its transportation department to develop a “concrete and comprehensive statewide plan” to achieve emissions reduction targets for 2030, 2035, and 2040, before reaching zero emissions in 2045. The plaintiffs had argued that Hawai‘i’s transportation system wasn’t decarbonizing fast enough and that its outsize emissions were eroding their right to a clean and healthful environment. A wildfire burning in the summer of 2022 in northwestern Montana near Kalispell. Don & Melinda Crawford / UCG / Universal Images Group via Getty Images “We will use the Montana case and the settlement agreement in Hawai’i as models for other states,” Phillip Gregory, an attorney with Our Children’s Trust, told the State Court Report in July. Other states with so-called “green amendments” to their constitutions are Illinois, Massachusetts, New York, and Pennsylvania. More than a dozen other states are considering adding them. In New Mexico, whose constitution does not yet include a green amendment but still says it is “of fundamental importance” to protect the state’s “beautiful and healthful environment,” a trial court last June denied defendants’ request to dismiss a lawsuit arguing against the approval of future oil and gas production. Some legal experts have argued that, while the Held decision is “noteworthy,” the unique circumstances of the case make it unlikely that a wave of similarly successful lawsuits will follow. It’s also unclear how far other court rulings based on a constitutional green amendment can go toward mitigating climate change beyond blocking an overtly anti-climate policy. Michael Gerrard, founder of the Sabin Center for Climate Change Law at Columbia University, told Grist that “push will come to shove when there are efforts to use these amendments to block major [fossil fuel] projects.”  On the other hand, it’s possible that other suits — including those not invoking constitutional rights — could cite the factual findings of Held v. Montana, like those establishing climate change’s unique effects on children. Read Next Indigenous youth are at the center of major climate lawsuits. Here’s why they’re suing. Anita Hofschneider During a seven-day trial in June, 2023, the 16 youth plaintiffs argued that the state’s promotion of fossil fuel infrastructure had jeopardized their physical and mental health, traditions, and recreational interests. Anthropogenic climate change has already had myriad impacts on Montana, including shorter winters with less snowfall, more frequent wildfires, and the reduced availability of wild game and ceremonial and medicinal plants. These impacts are expected to worsen as atmospheric carbon dioxide concentrations rise. McGrath acknowledged these impacts in his decision: “Plaintiffs showed that climate change does impact the clear, unpolluted air of the Bob Marshall Wilderness; it does impact the availability of clear water and clear air in the Bull Mountains; and it does exacerbate the wildfire stench in Missoula, along with the rest of the state.” In a concurrence separate from that of the five-justice majority, Justice Dirk Sandefur agreed with the court’s “ultimate issue holdings” but said that the state’s actions alone — even eliminating all fossil fuel projects — could not address climate-related harms felt by the plaintiffs. Justice Jim Rice offered the lone dissent, arguing that the plaintiffs lacked standing because the constitutional violations they cited were “theoretical” rather than “concrete” or “impending.” Montana Republicans and the state’s Republican-led justice department criticized the court for overstepping its powers, ruling in favor of “their ideologically aligned allies.” According to the Daily Montanan, the state’s Republican lawmakers plan to introduce “dozens of bills” next session to reform the court, either by reducing its power or by making it more conservative. Michael Burger, the Sabin Center’s executive director, told the State Court Report last July that the success of future constitutional climate cases may hinge on the political environment where they’re filed. ”It may prove more difficult in a state where the political leadership is disinclined toward climate action,” he said. Gerrard noted that several such cases have been filed in New York, the most recent state to adopt a green amendment, and that it’s “too early to tell” whether they’ll be impactful. This story was originally published by Grist with the headline ‘We have been heard’: Montana youth score a major climate victory in court on Jan 3, 2025.

In a 6-1 ruling, the Montana Supreme Court affirmed their constitutional right to a “clean and healthful environment.”

Montana’s Supreme Court has ruled that the 16 youth who sued the state in a landmark climate change lawsuit have a constitutional right to “a clean and healthful environment.”

The 6-1 decision upheld a lower court ruling in Held v. Montana, in which the plaintiffs argued that the state violated that right, enshrined in the state constitution in 1972, by limiting analysis of greenhouse gas emissions during environmental review of fossil fuel projects. Writing for the majority, Chief Justice Mike McGrath rejected a spate of arguments against the plaintiffs — including that they lacked standing to bring the suit and that Montana’s contribution to climate change is negligible in a global context.

“Plaintiffs showed at trial — without dispute — that climate change is harming Montana’s environmental life support system now and with increasing severity for the foreseeable future,” McGrath wrote in a 48-page opinion handed down December 18. Declining to regulate the state’s emissions because they are negligible would be like declining to regulate its mining pollution into Lake Koocanusa simply because 95 percent of the total pollution reaching the lake originates in Canada, he wrote.

Lead plaintiff Rikki Held, the only plaintiff who was 18 when the suit was filed in 2020, hailed the court’s decision in a statement as “a victory not just for us, but for every young person whose future is threatened by climate change.” 

“We have been heard,” she added.

The suit was brought by Our Children’s Trust, a nonprofit public interest law firm based in Eugene, Oregon. In a statement, lead attorney Nate Bellinger called the ruling “a victory for young people and for generations to come. The court said loud and clear: Montana’s Constitution does not grant the state a free pass to ignore climate change because others fail to act — this landmark decision underscores the state’s affirmative duty to lead by example.”

Montana Governor Greg Gianforte denounced the ruling, arguing in a statement that it would lead to “perpetual lawsuits that will waste taxpayer dollars and drive up energy bills.” The Montana Department of Justice, which represented the state in the lawsuit, called the ruling “disappointing, but not surprising,” according to the Montana Free Press.

Held v. Montana made history last year when it became the nation’s first constitutional climate case to go to trial. Experts have said it could lay a foundation for, or bolster, similar lawsuits — especially in states that, like Montana, have a constitutional guarantee to a clean and healthful environment.

One of those states, Hawai’i, settled a youth climate lawsuit last June, requiring its transportation department to develop a “concrete and comprehensive statewide plan” to achieve emissions reduction targets for 2030, 2035, and 2040, before reaching zero emissions in 2045. The plaintiffs had argued that Hawai‘i’s transportation system wasn’t decarbonizing fast enough and that its outsize emissions were eroding their right to a clean and healthful environment.

Smoke billows from a fire on dry hills.
A wildfire burning in the summer of 2022 in northwestern Montana near Kalispell. Don & Melinda Crawford / UCG / Universal Images Group via Getty Images

“We will use the Montana case and the settlement agreement in Hawai’i as models for other states,” Phillip Gregory, an attorney with Our Children’s Trust, told the State Court Report in July. Other states with so-called “green amendments” to their constitutions are Illinois, Massachusetts, New York, and Pennsylvania. More than a dozen other states are considering adding them.

In New Mexico, whose constitution does not yet include a green amendment but still says it is “of fundamental importance” to protect the state’s “beautiful and healthful environment,” a trial court last June denied defendants’ request to dismiss a lawsuit arguing against the approval of future oil and gas production.

Some legal experts have argued that, while the Held decision is “noteworthy,” the unique circumstances of the case make it unlikely that a wave of similarly successful lawsuits will follow. It’s also unclear how far other court rulings based on a constitutional green amendment can go toward mitigating climate change beyond blocking an overtly anti-climate policy. Michael Gerrard, founder of the Sabin Center for Climate Change Law at Columbia University, told Grist that “push will come to shove when there are efforts to use these amendments to block major [fossil fuel] projects.” 

On the other hand, it’s possible that other suits — including those not invoking constitutional rights — could cite the factual findings of Held v. Montana, like those establishing climate change’s unique effects on children.

During a seven-day trial in June, 2023, the 16 youth plaintiffs argued that the state’s promotion of fossil fuel infrastructure had jeopardized their physical and mental health, traditions, and recreational interests. Anthropogenic climate change has already had myriad impacts on Montana, including shorter winters with less snowfall, more frequent wildfires, and the reduced availability of wild game and ceremonial and medicinal plants. These impacts are expected to worsen as atmospheric carbon dioxide concentrations rise.

McGrath acknowledged these impacts in his decision: “Plaintiffs showed that climate change does impact the clear, unpolluted air of the Bob Marshall Wilderness; it does impact the availability of clear water and clear air in the Bull Mountains; and it does exacerbate the wildfire stench in Missoula, along with the rest of the state.”

In a concurrence separate from that of the five-justice majority, Justice Dirk Sandefur agreed with the court’s “ultimate issue holdings” but said that the state’s actions alone — even eliminating all fossil fuel projects — could not address climate-related harms felt by the plaintiffs. Justice Jim Rice offered the lone dissent, arguing that the plaintiffs lacked standing because the constitutional violations they cited were “theoretical” rather than “concrete” or “impending.”

Montana Republicans and the state’s Republican-led justice department criticized the court for overstepping its powers, ruling in favor of “their ideologically aligned allies.” According to the Daily Montanan, the state’s Republican lawmakers plan to introduce “dozens of bills” next session to reform the court, either by reducing its power or by making it more conservative.

Michael Burger, the Sabin Center’s executive director, told the State Court Report last July that the success of future constitutional climate cases may hinge on the political environment where they’re filed. ”It may prove more difficult in a state where the political leadership is disinclined toward climate action,” he said. Gerrard noted that several such cases have been filed in New York, the most recent state to adopt a green amendment, and that it’s “too early to tell” whether they’ll be impactful.

This story was originally published by Grist with the headline ‘We have been heard’: Montana youth score a major climate victory in court on Jan 3, 2025.

Read the full story here.
Photos courtesy of

UN Climate Conference Host Brazil Urges Nations to Negotiate and Find Solutions to Global Warming

Host country Brazil’s tactful guidance as host of the U.N. climate conference is raising hopes for ambitious action on fighting global warming as speeches continue from the high-level ministers in town

With a direct letter sent to nations, host country Brazil is shifting the U.N. climate conference into a higher gear. The letter sent late Monday comes during the final week of what has been billed as a historic climate summit, the first ever in the Amazon rainforest, a key regulator of climate because trees absorb carbon dioxide, a greenhouse gas that warms the planet. The letter comes ahead of speeches of high-level ministers Tuesday. Headliners include representatives from influential European countries like Ed Miliband, energy secretary of the United Kingdom, and Deputy Prime Minister Sophie Hermans of the Netherlands. More leaders will also speak from small island states and developing countries like Barbados and Bangladesh, both facing loss of land as seas rise because of climate change. The letter asks leaders to hash out many aspects of a potential agreement by Tuesday night so that much is out of the way before the final set decisions Friday, when the conference is scheduled to end. Climate summits routinely go past their last day, as all nations come to the negotiating table trying to balance domestic concerns with major shifts needed around the world to protect the environment and cut greenhouse gas emissions. Brazil’s guidance for the summit, called COP30, is raising hopes for significant measures to fight global warming, which could range from a road map to move away from fossil fuels like oil and coal, or more money to help nations build out clean energies like wind and solar. For negotiators, Brazil's letter will mean later nights as they seek to strike political bargains across a host of contentious issues.“There are important concessions we expect from all sides,” said André Corrêa do Lago, COP30 president. "It is said you have to give to receive.”That Wednesday timeline is “pretty ambitious" and the stakes are high, said Alden Meyer, a senior associate at climate think tank E3G.“Whether it’s dealing with the impacts of climate change, dealing with increased energy bills and energy insecurity, improving health, creating jobs. Those are the things that people care about. They don’t care about some sub-paragraph in a legal decision adopted here in Belem,” Meyer said. “Brazil, the presidency, has made that very clear since the beginning, that that’s going to be the litmus test.”He added that the optimistic spirit of the host country “is starting to get a little infectious” and that that is part of building trust and goodwill amongst nations.“I sense ambition here. I sense a determination,” former German climate envoy Jennifer Morgan said Monday morning. The Associated Press’ climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP’s standards for working with philanthropies, a list of supporters and funded coverage areas at AP.org.This story was produced as part of the 2025 Climate Change Media Partnership, a journalism fellowship organized by Internews’ Earth Journalism Network and the Stanley Center for Peace and Security.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – Oct. 2025

Pope Leo XIV Calls for Urgent Climate Action and Says God’s Creation Is 'Crying Out'

Pope Leo XIV is urging countries at United Nations climate talks to take “concrete actions” to stop climate change that is threatening the planet

BELEM, Brazil (AP) — Pope Leo XIV on Monday urged countries at United Nations climate talks to take “concrete actions” to stop climate change that is threatening the planet, telling them humans are failing in their response to global warming and that God’s creation “is crying out in floods, droughts, storms and relentless heat.”In a video message played for religious leaders gathered in Belem, Leo said nations had made progress, “but not enough.”“One in three people live in great vulnerability because of these climate changes,” Leo said. “To them, climate change is not a distant threat, and to ignore these people is to deny our shared humanity.”His message came as the talks were moving into their second week, with high-level ministers from governments around the world arriving at the edge of the Brazilian Amazon to join negotiations. Monday was dominated by speeches, with several leaders from Global South nations giving emotional testimony on devastating costs of recent extreme weather and natural disasters.Vulnerable nations have pressed for more ambition at these talks as world leaders have begun to acknowledge that Earth will almost surely go past a hoped-for limit — 1.5 degrees Celsius (2.7 degrees Fahrenheit) in Earth's warming since pre-industrial times. That was the target set at these talks in 2015 in the landmark Paris agreement.Scientists say in addition to deadly heat, a warming atmosphere leads to more frequent and deadly extreme weather such as flooding, droughts, violent downpours and more powerful hurricanes.Leo said there's still time to stay within the Paris Agreement, but not much.“As stewards of God’s creation, we are called to act swiftly, with faith and prophecy, to protect the gift He entrusted to us,” he said. And he added: “But we must be honest: it is not the Agreement that is failing, we are failing in our response. What is failing is the political will of some.”U.N. climate chief Simon Stiell said Leo's words “challenge us to keep choosing hope and action."Leo "reminds us that the Paris Agreement is delivering progress and remains our strongest tool — but we must work together for more, and that bolder climate action is an investment in stronger and fairer economies, and more stable world," Stiell said.David Gibson, director of the Center on Religion and Culture at Fordham University in New York, said Leo is becoming the world’s most prominent moral leader against climate change.“This message does stake Leo out as a voice for the rest of the world, especially the Southern Hemisphere where climate change is wreaking havoc with the vulnerable in Asia, Africa and Latin America,” said Gibson.And he said it shows that Leo, who spent decades working as a missionary in Peru and is a naturalized Peruvian citizen, “has a Latin American heart and voice.”The Laudato Si' Movement, a Catholic climate movement that takes its name from a 2015 encyclical in which Pope Francis called for climate action, called Leo's message “a profound moral intervention.""He reminds the world that creation is crying out and that vulnerable communities cannot be pushed aside. “His voice cuts through the noise of negotiations and calls leaders back to what truly matters: our shared humanity and the urgent duty to act with courage, compassion, and justice,” the group's executive director, Lorna Gold, said.The Associated Press’ climate and environmental coverage receives financial support from multiple private foundations. AP is solely responsible for all content. Find AP’s standards for working with philanthropies, a list of supporters and funded coverage areas at AP.org.This story was produced as part of the 2025 Climate Change Media Partnership, a journalism fellowship organized by Internews’ Earth Journalism Network and the Stanley Center for Peace and Security.Copyright 2025 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.Photos You Should See – Oct. 2025

AI is guzzling energy for slop content – could it be reimagined to help the climate?

Some experts think AI could be used to lower, rather than raise, planet-heating emissions – others aren’t so convinced Cop30: click here for full Guardian coverage of the climate talks in BrazilArtificial intelligence is often associated with ludicrous amounts of electricity, and therefore planet-heating emissions, expended to create nonsensical or misleading slop that is of meagre value to humanity.Some AI advocates at a major UN climate summit are posing an alternative view, though – what if AI could help us solve, rather than worsen, the climate crisis? Continue reading...

Artificial intelligence is often associated with ludicrous amounts of electricity, and therefore planet-heating emissions, expended to create nonsensical or misleading slop that is of meagre value to humanity.Some AI advocates at a major UN climate summit are posing an alternative view, though – what if AI could help us solve, rather than worsen, the climate crisis?The “AI for good” argument has been made repeatedly at the Cop30 talks in Belém, Brazil, with supporters arguing AI can be used to lower, rather than raise, emissions through a series of efficiencies that can spread through areas of our lives such as food, transport and energy that cause much of the pollution dangerously heating our planet.Last week, a coalition of groups, UN bodies and the Brazilian government unveiled the AI Climate Institute, a new global initiative aimed at fostering AI “as a tool of empowerment” in developing countries to help them tackle environmental problems.Proponents say the program, in time, will help educate countries on how to use AI in an array of ways to bring down emissions, such as better optimizing public transit, organizing agricultural systems and recalibrating the energy grid so that renewables are deployed at the right times.Even weather forecasting, including the mapping of impending climate-driven disasters such as flooding and wildfires, can be improved in this way, according to Maria João Sousa, executive director, Climate Change AI, one of the groups behind the new initiative.“Very few places in the world actually run numerical weather prediction models because numerical weather prediction models are very compute-intensive,” she said. “I definitely believe (AI) is a positive force to accelerate a lot of these things.”AI can help monitor emissions, biodiversity and generally see what is going on, said Lorenzo Saa, chief sustainability officer at Clarity AI, who is also attending Cop30.“You can really start looking at where the problem is,” he said. “Then you can predict, and the prediction is actually short-term and long-term. You can now predict floods in the next week, but you can actually figure out sea level rise and things like that.”Saa admitted there are legitimate concerns about the governance of AI and its impact upon society but, on balance, the effect on the environment could be positive. In June, a report by the London School of Economics had an unexpectedly sunny estimate – AI could reduce global greenhouse gases by 3.2bn to 5.4bn tonnes in the next decade, even factoring in its vast energy consumption.“People already make dumb decisions about energy, such as running air conditioning for too long,” Saa said. “How much of our phone has bad stuff for us? I think a lot. How many hours do we spend on Instagram?“My view of this is that society is going to go in this direction. We need to think about how we are not destroying the planet with heating and we’re actually trying to make sure that there’s a net benefit.”Some other experts and environmental advocates are not convinced. The huge computational power of AI, particularly generative AI, is fueling a boom in data centers in countries such as the US that is gobbling up a huge amount of electricity and water, even in places prone to droughts, pushing up electricity bills in some places as a result.The climate cost of this AI gold rush, driven by companies such as Google, Meta and OpenAI, is large and set to get larger – a recent Cornell University study found that by 2030, the current rate of AI growth in the US will add up to 44m tons of carbon dioxide to the atmosphere, the equivalent of adding 10m gasoline cars to the road or the entire annual emissions of Norway.“People have this techno-utopian view of AI that it will save us from the climate crisis,” said Jean Su, a climate campaigner at the Center for Biological Diversity. “We know what will save us from the climate crisis – phasing out fossil fuels. It’s not AI.”Also, while AI can be used to drive efficiencies to lower emissions, the same sort of tools can be used to optimize other areas – including fossil fuel production. A report last month by Wood Mackenzie estimated that AI could help unlock an extra trillion barrels of oil – a scenario which, if the energy markets were to be amenable to such a thing, would obliterate any hopes of restraining catastrophic climate breakdown.Natascha Hospedales, lead lawyer for AI at Client Earth, said there is some merit to the “AI for good” argument, but that it is a “really small niche” within a much larger industry that is much more focused on maximizing profits.“There is some truth that AI could help the developing world, but much of this is in the early stage and some of it is hypothetical – it’s just not there yet,” she said. “Overall we are very, very far from a situation where AI for good balances out the negative environmental impact of AI.“The environmental cost of AI is already alarming and I don’t see data center growth winding down any time soon. A small percentage of AI is used for good and 99% of it is companies like Google and Meta lining their pockets with money, damaging the environment and human rights as they do it.”

‘Damned if we do but completely stuffed if we don’t’: heatwaves will worsen longer net zero is delayed

A new study suggests heatwaves will not revert back towards preindustrial conditions for at least 1,000 years after emissions target reachedSign up for climate and environment editor Adam Morton’s free Clear Air newsletter hereHeatwaves will become hotter, longer and more frequent the later net zero emissions is reached globally, new research suggests.Scientists at the ARC Centre of Excellence for 21st Century Weather and Australia’s national science agency, the CSIRO, simulated how heatwaves would respond over the next 1,000 years, examining the differences for each five-year delay in reaching net zero between 2030 and 2060. Continue reading...

Heatwaves will become hotter, longer and more frequent the later net zero emissions is reached globally, new research suggests.Scientists at the ARC Centre of Excellence for 21st Century Weather and Australia’s national science agency, the CSIRO, simulated how heatwaves would respond over the next 1,000 years, examining the differences for each five-year delay in reaching net zero between 2030 and 2060.The research, published in the journal Environmental Research Climate, found that for countries near the equator, delaying net zero until 2050 would result in heatwave events that break current historical records at least once yearly.The study also suggests that heatwaves will not revert back towards preindustrial conditions for at least a millennium after net zero is reached, which “critically challenges the general belief that conditions after net zero will begin to improve for near future generations”.“The thing with net zero and heat waves is: we’re damned if we do, but we’re completely stuffed if we don’t,” the study’s lead author, Prof Sarah Perkins-Kirkpatrick of the Australian National University, said. “We’re already locked into a certain amount of warming.” Sign up to get climate and environment editor Adam Morton’s Clear Air column as a free newsletterStabilising global heating at 1.5C or 2C would still result in impacts “that we haven’t yet experienced, including worse heatwaves”, she said. “The thing is, if we delay net zero – up to 30 years and even longer – those impacts are only going to get worse. We’re already locked into some, but the longer we leave net zero, the worse it’s going to be.”“[In Australia] you have the Coalition basically saying: net zero is useless, it’s pointless, it’s not worth it, it’s going to cost us too much money,” she said. “Well, it’s going to cost us even more if we don’t even get to net zero by 2050.”“The silver lining to this sort of study, if there is one, is that we have time to adapt … so when these heatwaves occur, we’re as prepared for them as possible,” she said. “We know the impacts of heatwaves – there’s so much understanding about the health impacts, ecosystem impacts, impacts on financial services.“What those adaptation strategies look like – that remains to be seen,” she said. “Those conversations can start now.”The modelling was done using Australia’s global climate simulator, known as Access, and defined a heatwave as at least three consecutive days where temperatures are above the 90th percentile for maximum temperature.skip past newsletter promotionSign up to Clear Air AustraliaAdam Morton brings you incisive analysis about the politics and impact of the climate crisisPrivacy Notice: Newsletters may contain information about charities, online ads, and content funded by outside parties. If you do not have an account, we will create a guest account for you on theguardian.com to send you this newsletter. You can complete full registration at any time. For more information about how we use your data see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionProf David Karoly, a decorated climate change scientist and councillor with the Climate Council, who was not involved in the research, said the findings were not surprising.“There is a clear relationship between the cumulative emissions of carbon dioxide in the atmosphere and global mean temperatures,” he said.Karoly added that the study’s results were interesting but one caveat was that there were uncertainties in the modelling relating to potentially important processes such as rainfall changes, because the geographical representation of Australia and other regions in the Access model was of a lower resolution than for other climate simulators.

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