1. EXTREME WEATHER
Catastrophic European floods raise climate concerns
As the Danube River reaches record high levels and thousands flee Europe's worst flooding in more than a decade, scientists already are predicting that this deluge may be a portent of things to come.
U.S., China win praise for agreement on removing 'super' global warming gases
President Obama and new Chinese President Xi Jinping emerged from a California retreat this weekend with an agreement to ratchet down greenhouse gases from refrigerants that environmentalists are hailing as a major step in addressing climate change.