Global warming heats up. Global warming, even most skeptics have concluded, is the real deal, and human activity has been causing it. Warming was supposed to happen slowly, but now things are changing much faster than anyone predicted. [News Source]

As prices surge, oil giants turn sludge into gold. Oil sands deposits are now economically viable, thanks to rising global oil prices and improved technology. But heavy oil has big economic and environmental drawbacks. [News Source]

Clean-coal effort off to slow start. Three years after he first announced it, the centerpiece of President Bush's plan to produce electricity from coal without adding to global warming is finally getting under way. But it's off to a small start. [News Source]

Paper mill project splits Latin neighbors. The slender smokestack of the new paper mill rises from the shore of the Uruguay River like an all-seeing sentinel -- a beacon of hope for some, a cause of despair for others. [News Source]

Plagued by fear. On a Saturday morning in January 2003, Dr. Thomas Butler, a plague expert at Texas Tech, discovered that 30 vials of plague bacteria were missing from his lab. He suspected theft. [News Source]

Evidence of global warming around the globe. Virtually every day there is news from somewhere on the planet of the impact of global warming. [News Source]

How it affects your health. It's a fair bet that global warming is going to lead to a rise in human sickness and death. But what form they will take is difficult to say. [News Source]

Poll: Americans see a climate problem. A large majority of Americans — 85% — say global warming is probably happening, according to a new TIME magazine/ABC News/Stanford University poll. [News Source]

Studies point to rising oceans. Two new studies show that if global climate change unfolds as predicted, much of Louisiana’s coastline could be under water by the year 2100. [News Source]

Arizona temps on the rise in winter for last 70 years. Winter nights have warmed significantly across Arizona over 70 years, raising questions about whether human-caused global warming is part of the cause. [News Source]

WMO sees link between global warming and hurricanes. There is growing evidence of a link between global warming and natural disasters such as droughts and flooding, the head of the World Meteorological Organisation (WMO) said on Friday. [News Source]