decline

Humanity Just Produced The Biggest Increase in Global CO2 Emissions Ever Recorded

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Global energy-related carbon dioxide emissions rose by 6 percent in 2021 to a record 36.3 billion metric tons, their highest ever level, the International Energy Agency said Tuesday.   “The increase in global CO2 emissions of over 2 billion metric tons was the largest in history in absolute terms, more than offsetting the previous year’s … Read more

A Key Detail in Your Retina Could Indicate How Healthy Your Brain Is

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Alzheimer’s is an insidious brain disease marked by a slow mental decline that can develop unnoticed for decades before symptoms arise, but hidden signs of the condition might exist much sooner.   New research suggests that the thinning of a person’s retina – the light-sensitive tissue that lines the back of the eye – in … Read more

Comet impact may have triggered decline of Ohio’s Hopewell people 1,600 years ago

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Astronomy and anthropology have blended to help determine what might have triggered the decline of a major North American society 1,600 years ago.  A vibrant culture lived in the Ohio Valley from about 200 BCE to 300 CE. These people were the ancestors of many modern Native American tribes, such as the Haudenosaunee (Iroquois) and … Read more

As seed-hauling animals decline, some plants can’t keep up with climate change | Science

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Plants are Stuck as Seed-Eating Animals Decline

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As Earth heats up from the burning of fossil fuels, the climate conditions that species have adapted to are increasingly shifting away from their historical ranges. But while birds and other animals can often fly, walk or swim to follow their preferred environment, plants are quite literally rooted to the ground. They require outside forces … Read more

Biodiversity crisis: Animal decline is hurting plants’ ability to adapt to climate change

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Declines in bird and mammal species are making plant seed dispersal more difficult, which means plants can’t adapt as effectively to climate change Environment 13 January 2022 By Adam Vaughan An American robin eats a winterberry Paul Vitucci Losses in the number of birds and mammals are limiting the capacity of plants worldwide to adapt … Read more