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In Perpetuity: Toxic Great Lakes sites will require attention for generations to come

It’s convenient to think of fixing a problem and it’s done. But that doesn’t apply to the long-neglected legacy polluted sites in the Great Lakes region. In simple terms we think of a cleanup as removal of something that, left unattended, will become a nuisance or a problem. But cleanup of toxic sites, especially in water, is not that simple.

Highly efficient perovskite solar cells with enhanced stability and minimised lead leakage

While the power conversion efficiency of perovskite solar cells (PVSCs)—a future of solar cells—has already greatly improved in the past decade, the problems of instability and potential environmental impact are yet to be overcome. Recently, scientists from City University of Hong Kong (CityU) have developed a novel method which can simultaneously tackle the leakage of lead from PVSCs and the stability issue without compromising efficiency, paving the way for real-life application of perovskite photovoltaic technology.

Botswana says it has solved mystery of mass elephant die-off

Hundreds of elephants died in Botswana earlier this year from ingesting toxins produced by cyanobacteria, according to government officials who say they will be testing waterholes for algal blooms next rainy season to reduce the risk of another mass die-off.

Arctic summer sea ice second lowest on record: US researchers

Arctic summer sea ice melted in 2020 to the second smallest size since records began 42 years ago, US scientists announced Monday, offering further stark evidence of the impact of global warming.

Going on a 15-min ‘awe walk’ each week and stopping to appreciate nature helps boost positive emotions and reduce stress, study shows

Going on a 15-minute 'awe walk' each week, where we stop to appreciate the world around us, can help boost positive emotions and reduce stress, a new study shows.

Why do birds crash into solar panels?

Billions of birds die annually from collisions with windows, communication towers, wind turbines, and other human-made objects. One reason is that birds see a reflection of the sky in the object and think they're flying into an unobstructed path.

Air pollution in cities takes a toll on bees

The blanket of pollutants that seems to have found permanence in the air of India’s cities is not just taking its toll on human health. Pollutants are causing behavioral changes, irregular heartbeats, immunological and genetic changes in the giant Asian honeybee, which leads to lower survival rates, shows a study by researchers from the National Centre for Biological Sciences (NCBS).

Difference in microbiota between organic and conventional dairy farms

Bacteria and fungi on organic dairy farms are significantly different from those on conventional farms. That was discovered by postdoc researcher Sofia Gomes and her supervisors Nadia Soudzilovskaia and Peter van Bodegom in collaboration with the Louis Bolk Institute and Naturalis Biodiversity Center. Greater insight into microbial life on farms contributes to better production.

EPA Reapproves Toxic Weedkiller Atrazine with Fewer Protections for Children’s Health

Use of the highly hazardous, endocrine disrupting weed killer atrazine is likely to expand following a decision made earlier this month by the U.S. Environmental Protection Agency (EPA). Under the guise of “regulatory certainty,” the agency is reapproving use of this notorious herbicide, as well as its cousins simazine and propazine in the triazine family of chemicals, with fewer safeguards for public health, particularly young children.