NBC News

Salmon run

Salmon will soon swim freely in the Klamath River for first time in a century once dams are removed

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The largest dam removal project in U.S. history is nearing completion. Crews will use excavators this week to breach rock dams that have been diverting water upstream of two dams that were already almost completely removed, Iron Gate and Copco No. 1. The work will allow the river to flow freely in its historic channel, giving salmon a passageway to key swaths of habitat just in time for the fall Chinook, or king salmon, spawning season.

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Vials of blood

U.S. Food and Drug Administration approves blood test to screen for colon cancer

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The test, known as Shield, isn’t meant to replace colonoscopies, but is generating enthusiasm among doctors who say it has the potential to boost the dismal rate of screenings for the second-highest cause of cancer death in the United States. Shield has previously been available to doctors as a screening tool, at an out-of-pocket cost of $895. With the FDA approval, Medicare and private insurance companies are much more likely to cover the cost of the blood test, making it more widely accessible for patients.

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Silhouette of cannabis leaf

Brazil’s Supreme Court decriminalizes possession of marijuana for personal use

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The Supreme Court’s ruling has long been sought by activists and legal scholars in a country where the prison population has become the third largest in the world. Critics of current legislation say users caught with even small amounts of drugs are regularly convicted on trafficking charges and locked up in overcrowded jails, where they are forced to join prison gangs.

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Technicians carrying photovoltaic solar module while installing solar panel system on roof of house

U.S. President Joe Biden announces $7 billion in federal solar power grants

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President Biden marked Earth Day by announcing $7 billion in federal grants for residential solar projects serving 900,000-plus households in low- and middle-income communities. The projects are expected to eventually reduce emissions by the equivalent of 30 million metric tons of carbon dioxide and save households $350 million annually, according to senior administration officials.

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Rainforest scene

Brazil’s President Lula creates two new Indigenous territories, bringing total to 10

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The Cacique Fontoura reserve will be in Mato Grosso state and the Aldeia Velha territory will be in Bahia state. They will cover a combined total area of almost 132 square miles. Speaking at a ceremony in Brasilia, Lula said Indigenous peoples should be patient as he seeks to fulfill his pledge of creating 14 new territories. Last year, he demarcated six territories in April and two more in September.

Brazil’s President Lula creates two new Indigenous territories, bringing total to 10 Read more

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