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UN report: People have wrecked 40% of all the land on Earth

Grist

A new United Nations report released Wednesday shows farming, mining, and logging has marred more than half of the planet. If these trends continue, experts expect growing disruptions to human health, food supplies, migration, and biodiversity loss driven by climate change, in what the authors calls a “confluence of unprecedented crises.”.

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Rainforest study: Scientists now know the temperature at which photosynthesis stops

Grist

Around the world, leaves play a critical central role in staving off the worst impacts of climate change. This story is part of Record High , a Grist series examining extreme heat and its impact on how — and where — we live.

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Trees face extinction, too. What can we do about it?

AGreenLiving

Logging, invasive pests, disease, forest clearance and other types of habitat loss all threaten tree species. Nor is climate change helping. Central and South America lead in number of tree species, followed by tropical parts of Southeast Asia and Africa.

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The Amazon has lost over 10 million football fields of forest in a decade

AGreenLiving

This sobering deforestation figure highlights the harsh landscape changes caused by intentional human encroachment for commercial development purposes, such as logging, mining and cattle ranching. The canopy similarly controls atmospheric water levels, affecting the water cycle and stabilizing the rainfall of South America.

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Welcome to the Pyrocene

Grist

The Pantanal wetlands in central South America burned. With fire as a theme, it offers a sideways view on climate change, continental scale shifts in biogeography, the sixth extinction, changes in ocean chemistry and sea level, and the character of the human presence on Earth. Australia’s smoke circled the globe.