50 years ago, American waterways were getting more protections

That bill laid the foundations for the Clean Water Act of 1972, establishing U.S. regulations for releasing pollutants into navigable waters. While the law protects "waters of the United States," the definition of what "waters" meant remained vague until a 2015 regulation defined eight categories of protected waters, which included headwater streams, lakes and wetlands. President Donald Trump's administration revised that definition in 2020 to exclude groundwater and some streams. The change also reduces the number of protected wetlands by roughly half.

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Ozone hole above Arctic caused due to unusual atmospheric conditions closes

A hole in the ozone layer above the Arctic caused due to unusual atmospheric conditions, including freezing temperatures in the stratosphere, has closed. The development was confirmed by Copernicus Atmosphere Monitoring Service (CAMS) and Copernicus Climate Change Service (C3S) implemented on behalf of the European Commission. The hole was first spotted by scientists in late March this year.

Scientists digitally rebuild dinosaur's brain, learn about its diet

The University of Bristol's scientists have "rebuilt" the brain of a Thecodontosaurus, that roamed England some 205 million years ago, using advanced imaging and 3D modelling techniques. They said unlike its plant-eating relatives, Thecodontosaurus may have eaten meat and could have walked on two legs. Experts also reconstructed its inner ears and estimated that it had high hearing frequency. Continue...

The Vanishing Ice: Climate Change and Its Dire Impact on Arctic Wildlife

Introduction: In the vast, icy expanses of the Arctic, a silent crisis is unfolding. The effects of global warming are nowhere more apparent than in this frigid wilderness, where the reality of climate change has become a daily struggle for survival for its inhabitants. The Shrinking Arctic Ice: At the heart of this crisis is the rapid melting of sea ice. The Arctic's ice caps, integral to the region's ecosystem, are shrinking at alarming rates. This loss of ice is not just a statistic; it's a dramatic shift that is uprooting the lives of the wildlife that call the Arctic home. Polar Bears: Icons of Climate Change: Polar bears, the majestic symbols of the Arctic, are perhaps the most visibly affected. Dependent on sea ice for hunting seals, their primary food source, these bears are finding their hunting grounds disappearing. As a result, they are forced to swim longer distances and face starvation, leading to a decline in their population. Arctic Foxes and Seals: Adapting...

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