Frogs, whom to blame?

Frogs and other amphibians dying at alarming rates, say scientists: http://www.guardian.co.uk/environment/2008/aug/14/wildlife.endangeredhabitats ___________________________________________________________________________________ "Cyclical changes in the sun's energy output are not responsible for Earth's recent global warming, a new study asserts. Instead the findings put the blame for climate change squarely on human-created carbon dioxide (CO2) and other greenhouse gases—reinforcing the beliefs of most climate scientists. The sun's output waxes and wanes due to a variety of mechanisms. Its power rose during much of the 20th century, but it has declined over the past two decades. "Up until 1985 you could argue that the sun was [trending] in a direction that could have contributed to Earth's rising temperatures," said study author A. Mike Lockwood of the University of Southampton in Britain. Two decades ago, "it did a U-turn. If the sun had been warming the Earth, that should have come to an end, and we should have seen temperatures start to go the other way," Lockwood said. Yet Earth's temperatures have continued to climb since that date—making a strong solar role in warming appear unlikely." Sun Not a Global Warming Culprit, Study Says Brian Handwerk for National Geographic News July 12, 2007