Greenhouse Effect: CO2 Concentrations Set to Hit Record High of 400 PPM

Atmospheric concentrations of CO2 are set to pass 400 ppm, far faster than scientists would have predicted. That shows how difficult it's been to reduce carbon...

Arctic Permafrost: Climate Wild Card

On the basics, the science of climate change is pretty straightforward. Carbon dioxide released into the air—whether through the burning of fossil fuels,...

Global Warming: Vicious Cycles

The debate over whether Earth is warming up is over. Now we're learning that climate disruptions feed off one another in accelerating spirals of destruction...

How Hot Will It Get?

Not so long ago, people talked about global warming in apocalyptic terms--imagining the Statue of Liberty up to its chin in water or an onslaught of tropical...

Is The Earth Warming Up?

The Great Plains has become a dust bowl, and people are moving north into Canada's uplands to seek work. Even in Alaska, changing ocean currents are boosting the...

Planet Of The Year: Global Warming Feeling the Heat

For more than a decade, many scientists have warned that cars and factories are spewing enough gases into the atmosphere to heat up the earth in a greenhouse...

Global Warming: A New Warning

It may not be easy to determine if the greenhouse effect is causing a worldwide rise in global temperatures, but the heated atmosphere around the White House has...

America: Abroad Why Bush Should Sweat

When George Bush proclaimed himself the environmentalist candidate in an outdoor campaign speech on Aug. 31, 1988, he had to mop his brow several times as he...

Essay: Saving Nature, But Only for Man

Environmental sensitivity is now as required an attitude in polite society as is, say, belief in democracy or aversion to polyester. But now that everyone from...

The Environment: Cleaning Up the Mess

This is the second in a series of weekly essays on the important issues that the candidates are, or should be, addressing. It was the summer that the earth...