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Wildflowers Are Blooming – And NASA Just Got the Best View

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Monday, March 31, 2025

NASA scientists are using space-based imaging technology to unlock the hidden world of flowers. By tracking wildflower blooms across California nature preserves using advanced spectrometers, researchers are uncovering how flower color and timing reflect broader environmental changes. This new method could revolutionize how we monitor ecosystems, predict superblooms, and support farmers and pollinators – all [...]

NASA scientists are using space-based imaging technology to unlock the hidden world of flowers. By tracking wildflower blooms across California nature preserves using advanced spectrometers, researchers are uncovering how flower color and timing reflect broader environmental changes. This new method could revolutionize how we monitor ecosystems, predict superblooms, and support farmers and pollinators – all [...]

Imaging Spectrometer Aboard Research PlaneNASA scientists are using space-based imaging technology to unlock the hidden world of flowers. By tracking wildflower blooms across California nature preserves using advanced spectrometers, researchers are uncovering how flower color and timing reflect broader environmental changes. This new method could revolutionize how we monitor ecosystems, predict superblooms, and support farmers and pollinators – all [...]
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Time Spent in Nature is Good for Your Brain, but an Excess Can Negate These Benefits

A “Goldilocks” measure of green space might help stave off dementia, but an excess could lead to cognitive decline

Time Spent in Nature Can Be Good—and Sometimes Bad— for Your BrainA “Goldilocks” measure of green space might help stave off dementia, but an excess could lead to cognitive declineBy Teresa Schubert edited by Gary StixThere's nothing like a good walk through your local park to unwind and release stress from a busy day. Taking some time in nature is undeniably good for you, with well-documented benefits to physical and mental health. But new research suggests that when it comes to the risk of dementia and Alzheimer’s disease, easy access to nature can sometimes help but, at other times, can be too much of a good thing.The causes of dementia—a broad category of conditions that can affect memory, language and other brain capacities—are multifaceted and complex. There is often a genetic component, but there are also contributions from health risk factors that arise throughout life. In 2024 the Lancet Commission on dementia identified 14 such factors that reliably increase the risk of developing dementia. These include physical health factors such as cardiovascular disease, high LDL cholesterol, diabetes, and obesity and traumatic brain injury, as well as psychological factors such as depression and social isolation.Thousands of studies provide solid evidence about the dangers of these risk factors, but researchers are far from having all the answers about dementia. In the past 10 or so years, researchers have begun looking beyond these established risks to the effect of an individual’s physical and social environment, which might be more under our control than factors such as genetic predisposition. You might not be able to change your genes, but in some cases, you can change where you live or your hobbies or habits. According to Marco Vinceti of the University of Modena and Reggio Emilia in Italy, “there is growing and convincing evidence that risk of neurodegenerative disease, including cognitive impairment and dementia, can be substantially reduced by environmental and behavioral factors, and this may even be true in individuals having high genetic susceptibility.” Studying the role of environmental factors has led to the recent discovery that exposure to air pollution (such as from wildfire smoke or heavy traffic) increases your chances of developing dementia. This is also the line of questioning that led researchers to discover the positive effects of green space.On supporting science journalismIf you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.The benefits of green space for mental and brain health are numerous. Living near and spending time in green space (including parks, wooded areas and even farmland) can decrease the risk of cardiovascular disease and type 2 diabetes and is associated with a lower risk of Alzheimer’s disease and other forms of dementia later in life. According to Anjum Hajat, an epidemiologist at the University of Washington School of Public Health, access to green space “is important because it provides people with an easy, low-cost option to improve their health. Spending time in nature may have other benefits, too, like increasing physical activity or increasing time spent with friends and family; both of these things have many health benefits.”Based on this research, you might be ready to give up city life. You might presume that more green space is better, and that living on a few wooded acres with nothing but trees for miles around will lead to the lowest possible chance of dementia. It turns out this is not so simple. A 2022 research study led by Federico Zagnoli of the University of Modena and Reggio Emilia revealed that more green space is not always better. The researchers found a U-shaped association between exposure to green space and dementia risk—low levels of green space were associated with a higher likelihood of developing dementia, and medium levels were linked to a lower risk. But the highest level of green space exposure didn’t reduce dementia risk relative to the medium level—and in some cases even increased it! In other words, too little green space has an adverse effect, but so might too much of it.Why might more of a good thing be bad? Living out in nature can mean lower access to medical and social services, fewer places to socialize and higher chances of social isolation—circumstances that would otherwise support brain health and reduce dementia risk. Although research on some of these factors is still ongoing and not yet certain, there is solid evidence for the risks of social isolation. As Vinceti puts it, “The higher risk of dementia associated with ‘extremely high’ green spaces around the place of residence is likely attributable to social isolation and socioeconomic disadvantage in certain rural areas. Rurality may also be correlated with other risk factors, such as lower socioeconomic status or high pesticide exposure.” So the conclusion is that green space itself is not bad for your brain health, but living on a few acres of land surrounded by forest and farmland might increase your risk of dementia in other ways. Although trees have a positive effect, they are no substitute for a nearby hospital, local community center and a walkable neighborhood with friendly neighbors. Aiming for the lowest possible dementia risk is all about a balance: enough neighborhood density to have easy access to services and social support but plenty of trees for a walk in the park..

Defra asks England’s biggest landowners to come up with plans to restore nature

Exclusive: Representatives of king, National Trust and others called on to work together to protect environmentUK politics live – latest updatesSteve Reed called in some of England’s biggest landowners for a meeting on Thursday, asking them to come up with meaningful plans to restore nature on their estates.Representatives for King Charles and Prince William were among those at the meeting, asked by the environment secretary to draft new land management plans to help meet the country’s legal Environment Act targets. Continue reading...

Steve Reed called in some of England’s biggest landowners for a meeting on Thursday, asking them to come up with meaningful plans to restore nature on their estates.Representatives for King Charles and Prince William were among those at the meeting, asked by the environment secretary to draft new land management plans to help meet the country’s legal Environment Act targets.The landowners also included third-sector organisations such as the National Trust, RSPB and the Wildlife Trusts, along with representatives from the government estate such as the Ministry of Defence and Natural England.Between them, the assembled “National Estate for Nature” group own 10% of England’s land, making their cooperation crucial if ministers are to meet legally binding environment targets and stop the decline of nature.Reed called them to action to collectively protect and restore nature on their estates across England, asking them to report back on potential new approaches for sustainable land use, land management, change, or investment. He said the group should set minimum standards for land management plans, with clear milestones for nature restoration and protections.He said: “Landowners must go further and faster to restore our natural world. The National Estate for Nature, who manage a tenth of the land in this country, have a responsibility to future generations to leave the environment in a better state. We have a unique opportunity to work together on common sense changes that create a win-win for nature, the economy, and make the best use of the land around us.”Just 8% of the land and sea in England is protected for nature. The government has a target to reach 30% by 2030, but wildlife groups say the proportion of land “effectively protected” for nature is even lower than the official statistic, at 2.93%. Nature across England continues to be in decline, with wild bird numbers decreasing each year. The 2023 state of nature report described the UK as one of the most nature-depleted countries in the world, based on declines since the 1970s.The Labour government hopes to accelerate efforts to meet these targetsand recently legalised the wild release of beavers and announced a land use framework that will provide guidance on how to best use land for food and nature.The environmental campaigner Guy Shrubsole said: “Major landowners in England like the Forestry Commission, crown estate and water companies own millions of acres of land – it’s only right that we expect them to repair the badly damaged habitats that they own.”He argued that large landowners should make their plans to protect nature public so that they can be scrutinised and held to account: “The government must mandate these landowners to publish their plans for nature restoration, so the public can see how the land is being looked after on our behalf – and change the outdated legal duties of public bodies to prioritise restoring ecosystems and fixing the climate crisis.”skip past newsletter promotionThe planet's most important stories. Get all the week's environment news - the good, the bad and the essentialPrivacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionHarry Bowell, the director of land and nature at the National Trust, said: “We are delighted to join the National Estate for Nature group, bringing the National Trust’s stewardship of 250,000 hectares to the table. As the government’s land use framework makes clear, a transformation in the use of land is needed if we are to meet our nature and climate targets. The biggest landowners – us included – have the power, and responsibility, to drive forward that transformation.”Further quarterly meetings are expected to focus on developing and implementing agreed on-the-ground plans to drive nature’s recovery.

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