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"In south Texas, where the Rio Grande divides the United States from Mexico, three of the last remaining sections of border fence -- approved more than five years ago -- remain unbuilt."

"ESTREMOZ, PORTUGAL — We spent Christmas in a cabin on a hillside in the cork oak forest that clothes much of southern and central Portugal. We hiked along streams awakened by the winter rains. After dinner we walked under shockingly bright stars, undimmed by light pollution, listening to owls and the tinkle of bells from goats."

"No part of the U.S. will escape the harsh consequences of climate change, which has already begun to cause trouble from Alaska to Florida, and from Maine to Hawaii, and which will worsen as the century goes on. But according to a report released January 28, the nation’s coastlines -- Atlantic, Gulf, Pacific and Great Lakes -- are likely to get the worst of it."

"Microbes are known to be able to thrive in extreme environments, from inside fiery volcanoes to down on the bottom of the ocean. Now scientists have found a surprising number of them living in storm clouds tens of thousands of feet above the Earth. And those airborne microbes could play a role in global climate."