"Japan pledged nearly $500 million to contain leaks and decontaminate radioactive water from the tsunami-crippled Fukushima nuclear plant, as the government stepped up its intervention in the worst atomic disaster in a quarter century."

"The world's oceans are turning acidic at what's likely the fastest pace in 300 million years. Scientists tend to think this is a troubling development. But just how worried should we be, exactly?"

"Crop-damaging pests are moving towards the poles at a rate of more than 25 km (16 miles) a decade, aided by global warming and human transport, posing a potential threat to world food security, a study showed on Sunday."

"TOKYO -- A crisis over contaminated water at Japan's stricken nuclear plant worsened on Saturday when the plant's operator said it had detected high radiation levels near storage tanks, a finding that raised the possibility of additional leaks."

"No one understands risk better than the insurance industry — except, perhaps, the reinsurance industry, the companies that sell insurance to insurers, which also need protection from risk exposure. As the risk managers for the risk managers, reinsurers follow climate change obsessively. A great deal of money is at stake. ..."

"Mercury found in high levels in deep Pacific Ocean fish such as swordfish has a chemical fingerprint, and it implicates coal-burning power plants in Asia, according to a new study."

"Mark Lynas has done the world a service in providing on-the-ground reporting from the Philippines, digging in on some vital questions related to the destruction of field trials of non-commercial, genetically modified, vitamin-fortified Golden Rice there in early August. ... The same is true for Amy Harmon, who wrote an incisive analysis of the research vandalism that ran in The Times on Sunday. The two pieces powerfully strip away distortions and myths surrounding the latest instance of anti-biotechnology violence and the grain that was the focus of the assault."

"Scientists probing the mystery of the so-called 'global warming hiatus' may have made a breakthrough. According to a new study published Wednesday in the journal Nature, a persistent area of unusually cool sea surface temperatures in the tropical Pacific Ocean could explain why, despite ever-increasing amounts of manmade greenhouse gases in the atmosphere, global average surface temperatures have increased at a slower rate during the past 15 years."

"Secretary of State John Kerry said Monday that a large-scale chemical weapons attack occurred in Syria. There are still many questions about chemical weapons, some of which can be answered easily and some of which can't."

"Experts claim current rate of change is likely to be more than 10 times faster than it has ever been in Earth's history."