International

"Six activists climb Europe's tallest building in a protest against oil and gas drilling the Arctic."

"Major earthquakes thousands of miles away can trigger reflex quakes in areas where fluids have been injected into the ground from fracking and other industrial operations, according to a study published in the journal Science on Thursday."

"Japan's nuclear regulator says radioactive water from the crippled Fukushima power plant is probably leaking into the Pacific Ocean, a problem long suspected by experts but denied by the plant's operator."

"The United States and China, the world's top emitters of greenhouse gases, agreed to five initiatives on Wednesday to cut carbon output from the largest sources, including heavy duty vehicles, manufacturing and coal-fired plants, the State Department said."

"Archaeologists digging in the foothills of Iran's Zagros Mountains have discovered the remains of a Stone Age farming community. It turns out that people living there were growing plants like barley, peas and lentils as early as 12,000 years ago."

"In the United States, everyone becomes a chef on the Fourth of July."

"Ivory poachers may have finally met their match: forensic science. A study just published by PNAS describes a carbon-dating technique making it possible to determine the age of elephant tusks—and thus whether a particular piece of ivory has been acquired illegally."

"A White House plan to curb illegal trafficking in rhino horn, elephant tusks and body parts from other endangered wildlife could have the side benefit of helping to stabilize parts of Africa plagued by insurgent groups, military and political analysts say."

"GENEVA -- Global warming accelerated since the 1970s and broke more countries' temperature records than ever before in the first decade of the new millennium, U.N. climate experts said Wednesday."

"A meeting of 24 nations and the European Union in mid-July will decide the fate of two proposed ocean reserves in Antarctica."