Heat and population shift raise future extreme heat exposure
A Nature Climate Change study projects a sharp rise in days over 95 degrees for Americans by mid century as hotter climates combine with population shifts. The Houston Dallas San Antonio and Atlanta Charlotte Raleigh corridors face the biggest impact, with researchers noting exposure grows from both climate and where people live.
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Nature Climate Change
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Dallas
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Atlanta-Charlotte- Raleigh
Ethiopian fossils reveal new forerunner to humans
Fossils from Ethiopia's Afar region dated 3.3 to 3.5 million years old suggest Australopithecus deyiremeda, a second early human ancestor near Lucy's species. Researchers caution about ties to Lucy and note possible future discoveries may clarify relationships. Some experts dispute the new species designation.
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New York
Lucy
Ethiopia
Afar
Nature
Deyiremeda
Bernard Wood
George Washington University
Oldest stone tools found in Kenya change human origins view
In northern Kenya near Lake Turkana researchers describe 149 stones and flakes dated to 3.3 million years old, far older than any known tool evidence. The finds, reported by Sonia Harmand and Jason Lewis of Stony Brook in Nature, suggest early tool making may predate Homo sapiens and involve smaller-brained precursors.
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Kenya
Sonia Harmand
Jason Lewis
Stony Brook University
Nature
Alison Brooks
George Washington University
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Nature Paper
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EPA plans temporary pesticide restrictions while honeybees feed
The EPA proposes a temporary rule to create pesticide free zones during bloom when professional beekeepers track bees across farms. The ban covers most insecticides across 76 chemicals and over 1,000 products, aiming to reduce bee exposure and reverse steep population declines noted by beekeepers.
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EPA
U.S
Jim Jones
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Associated Press
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Ragweed warming to increase European allergies by 2050
A study in Nature Climate Change says European ragweed pollen could quadruple as heat and higher carbon dioxide boost growth, expanding northward by mid century. Co author Robert Vautard notes France, the UK, and Germany may see new allergy sufferers including Paris, with other non climate factors also at play.
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