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Today's Top 5

Biologists Say Half the World's Species Could Be Extinct By End of Century

One in five species on Earth now faces extinction, and that will rise to 50% by the end of the century unless urgent action is taken. That is the stark view of the world’s leading biologists, ecologists and economists who will gather on Monday to determine the social and economic changes needed to save the planet’s biosphere. “The living fabric of the world is slipping through our fingers without our showing much sign of caring,” say the organisers of the  Biological Extinction conference held at the Vatican this week. - The Guardian

Proposed Trump Budget Would Hike Defense Budget, Cut EPA

Trump is slated to sign documents as soon as Monday compelling the EPA to begin undoing recent regulations, including the Clean Power Plan that slashes greenhouse gas emissions from electricity generation and the Waters of the U.S. rule that defined which waterways are subject to pollution regulation. - Bloomberg

Millions Without Water in Chile Capital After Floods

Rainstorms and landslides in Chile have contaminated a major river forcing the authorities to cut off drinking water to at least four million people in the capital, Santiago. Officials said the water supply from the Maipo river would be cut to most of the city until the water flowed clear. - BBC

New Jersey Lowers Childhood Blood Lead Level Benchmark to Increase Early Intervention

Lead screening and treatment requirements for New Jersey children are about to get tighter as the state establishes stricter guidelines to better care for those at risk. New Jersey adopted the most up-to-date benchmark from the federal Centers of Disease Control and Prevention to determine when and how a child should be treated for elevated levels of lead in their blood. Health experts said research now finds that even low levels can lead to developmental problems. - Press of Atlantic City

Coal Industry Casts Itself As Clean Energy Player

President Trump has questioned the science behind climate change as “a hoax” in positioning himself as a champion of coal. The three largest American coal producers are taking a different tack. Seeking to shore up their struggling industry, the coal producers are voicing greater concern about greenhouse gas emissions. Their goal is to frame a new image for coal as a contributor, not an obstacle, to a clean-energy future — an image intended to foster their legislative agenda. - New York Times

Today's Top 5

Pruitt: Aggressive Cuts to Obama-Era Green Rules to Start Soon

U.S. President Donald Trump's administration will begin rolling back Obama-era environmental regulations in an "aggressive way" as soon as next week, the head of the Environmental Protection Agency said on Saturday - adding he understood why some Americans want to see his agency eliminated completely. Pruitt added the EPA's focus on combating climate change under former President Barack Obama had cost jobs and prevented economic growth, leading many Americans to want to see the EPA eliminated completely. - Reuters

Amazon Deforestation, Once Tamed, Comes Roaring Back

A decade after the “Save the Rainforest” movement forced changes that dramatically slowed deforestation across the Amazon basin, activity is roaring back in some of the biggest expanses of forests in the world. That resurgence, driven by the world’s growing appetite for soy and other agricultural crops, is raising the specter of a backward slide in efforts to preserve biodiversity and fight climate change. - New York Times

A World Turned Upside Down

Wind and solar energy are disrupting a century-old model of providing electricity. What will replace it? - The Economist

Firefighters and Cancer: Is a Risky Job Even Riskier?

In 2015, the Centers for Disease Control and Prevention released the final results of what is currently the largest study of cancer risk among career firefighters ever conducted in the United States. The study of about 30,000 firefighters over a 60-year span showed that compared with the general population, firefighters on average are at higher risk for certain kinds of cancer — mainly oral, digestive, respiratory, genital and urinary cancers. The CDC also found that firefighters who were exposed to more fires than their peers experienced more instances of lung cancer and leukemia, said Robert Daniels, the principal investigator of the project and a research epidemiologist at the National Institute for Occupational Safety and Health. The risks come on many fronts, research has indicated. - Washington Post

South Florida Continues Prep For Sea Level Rise

The causes of climate change and debate about how far government should go to prepare for it continue to be a political flash point nationally. But at Florida’s southern end, densely populated and with billions in real estate at stake, preparing for it has become commonplace. - Sun Sentinel