"BOSTON -- Concerns have cropped up in recent years that the methane leaks from oil and gas fields could be large enough to pose a significant climate threat."

"LONDON -- The cause of much of the recent extreme weather across the world is climate change triggered by human activities, scientists say. The paper suggests that man-made climate change is repeatedly disturbing the patterns of airflow around the northern hemisphere."

"High levels of a dangerous toxin found in bagged dog food on a grocery store shelf in Iowa have highlighted the prevalence of a problematic mold in last year's U.S. corn crop, as state and federal officials work on limiting the food safety concern."

Researchers and campaigners claim that some 40 percent (19,200) of the children born to mothers taking the epilepsy drug Epilim have developed physical or mental problems.