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Christopher Columbus landing in 1492, depicted in a painting in the San Juan, Puerto Rico Capitol building. Jimmy Everson, DVM / Flickr

The widespread genocide of Native Americans by European colonizers between the 16th and 17th century killed so many that it helped cool the globe, according to new research.

A study published in the journal Quaternary Science Reviews calculates that the 56 million indigenous deaths across the Americas caused by disease and European-led massacres led to the overgrowth and reforesting of large tracts of agricultural land, contributing to a 0.15C degree drop in the early 1600s known as the Little Ice Age.

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The W. A. Parish Power Plant, owned by NRG Energy, is one of the largest coal-fired power plants in the U.S. Roy Luck / CC BY 2.0

Power plants across Texas are leaching toxins into groundwater, according to new research. A report released this week from the Environmental Integrity Project found that all of the state's 16 coal-fired power plants are leaching contaminants from coal ash into the ground, and almost none of the plants are properly lining their pits to prevent leakage.

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Anacortes refineries seen from Mount Erie. Robert Ashworth / CC BY 2.0

The fossil-fuel-funded campaign to defeat the carbon tax ballot measure in Washington State is attracting enormous sums of money as well as charges of dubious outreach efforts towards minority communities.

A review of state data by Reuters shows that the oil industry has spent more than $30 billion dollars to fight the measure—double the amount of money spent by pro-initiative groups, and the most money ever spent to defeat a ballot measure in Washington.

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Alan Majchrowicz / Photographer's Choice / Getty Images

The Trump administration's push to open up federal lands for oil and gas drilling, following successful lobbying from industry, is transforming swathes of the country, the New York Times reported in a comprehensive new piece.

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Cassie Rulene Vadovsky / Facebook / Screenshot

Flooding from Hurricane Florence has activated dormant "gallnipper" (Psorophora ciliata) eggs, among others, leading to the hatching of billions of unusually large mosquitoes.

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Gary Yeowell / The Image Bank / Getty Images

Unchecked climate change will rapidly change the United States' national park system, which has warmed twice as fast on average as the rest of the country between 1895 and 2010, new research shows.

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