"UNITED NATIONS -- This summer's sustainable development conference in Brazil, known as Rio+20, is emerging as an overt attempt by U.N. officials to shift away from the divisive politics of climate change to a broader debate on the green economy and how to bring it to developing nations."

The Cossoloottoo family in Centerville, Iowa, suspected vaccinations were the culprit when their 6-month-old daughter got seizures and what looked like autism. Their concerns were worsened by studies linking vaccinations to autism -- studies later discredited as fraud. It wasn't until some 10 years later that a specialist at the Mayo Clinic correctly diagnosed their daughter as having a genetic disorder, Dravet syndrome, that strikes one in 20-40,000 children born.

"Certain disease outbreaks, including some of the worst pandemics of the 20th century, are linked to weather patterns in the Pacific Ocean, according to new research. Scientists said tracking these climate changes can help officials anticipate and plan for surges in illnesses."

"TOKYO -- The temperature fell to minus 8.7 degrees Celsius on Sunday morning near Japan's crippled nuclear power plant, causing water pipes and valve seals to rupture, leaking tons of water."

"Workers at the Fukushima Daiichi nuclear plant discovered Sunday that the damaged pipes spilled nearly eight tons of water from 14 locations. Two additional water leaks were discovered today, according to plant operator Tokyo Electric Power Company.

"Companies that disclose greenhouse gas emissions see a small rise in stock price following disclosure, compared to similar companies that keep mum, researchers say."

"Nitrogen fertilizers have been crucial to feeding the increasing number of mouths on earth, but the pollution they leave behind has real consequences that have costs of their own."

The shine of a new iPad and Apple's record profits come at a steep cost: the health of the Chinese workers who make them possible.

"Japan's energy minister admitted on Tuesday that no records were kept of top level discussions in the critical early days on how to respond to the world's worst nuclear disaster in 25 years."

"The sun is bombarding Earth with radiation from the biggest solar storm in more than six years with more to come from the fast-moving eruption."