West Nile virus running wild

West Nile virus running wild

Mosquitoes spread a lot of disease, but they are not just “flying hypodermic needles.” As we rush to protect ourselves against a virus More »

Himalayan glaciers

Himalayan glaciers

A long debate about these giant ice streams has gyrated wildly. Now, satellite data show a moderate loss of mass for a recent six-year More »

Denial of science, science of denial

old color engraving
Tobacco and cancer. CFCs and ozone. Vaccines and autism. And evolution through natural selection, acid rain and global warming. Why do More »

A Climate of Extremes

Detail from schematic diagram

Classroom Activity Page: Higher temperatures are only part of the climate change forecast. Are current extreme weather More »

Ocean fish in hot water

Ocean fish in hot water

The ocean’s most valuable fish are caught in a vise. Areas known as dead zones are encroaching on their living zones and pinning them More »

Tundra fire: Bad news on warming

line of fires seen as thick barrier of smoke along tundra landscape

The globe warms, and the Arctic starts to burn. If warming causes fires that release carbon dioxide, the primary greenhouse gas, will More »

Trash: Does burning beat burying?

Trash: Does burning beat burying?

Twenty-five years ago, trash incinerators were a major source of air pollution. In Europe today, cleaner incinerators are common and More »

I robot. Aye science!

I robot. Aye science!

Ocean technology on the move: 1: a robot sub smart enough to find stuff in the deep ocean 2: a metal fish glides for weeks under the More »

A climate of extremes?

A climate of extremes?

Are extreme heat, wicked cyclones and record rainfalls signs of climate change, or just more changes in the weather? Will warming More »

Is global warming real?

Is global warming real?

Is global warming real? Image: NASA Over the past two decades, the global average surface temperature has increased noticeably. This