Climate

Climate

Weather patterns over Southern Hemisphere have a regular pulse

Variations in energy and rainfall over the Southern Hemisphere follow a pattern that repeats every 20 to 30 days.

Ecosystems

Amazon doesn’t actually go green in dry seasons

An optical illusion in satellite data made forests appear to grow faster.

Earth

Eye in the sky

With its free Images of Change iPad app and online gallery, NASA makes the aerial perspective available to all, with results both stunning and disturbing.

Climate

Grape expectations

Global warming has delivered long, warm growing seasons and blockbuster vintages to the world’s great wine regions. But by mid-century, excessive heat will push premium wine-making into new territory.

Climate

2013 among top 10 warmest years on record

Global temperatures have now been above average for 37 consecutive years.

Climate

Mangroves move up Florida’s coast

Satellite images reveal that the tropical trees are expanding north up Florida’s Atlantic coast, taking advantage of rising winter temperatures.

Climate

Year in Review: Carbon dioxide levels pass milestone

Although scientists are confident about humankind’s role in climate change, they still have a lot to learn about the magnitude and timing of future climate shifts.

Environment

Protein fibers trap greenhouse gas

The method could scrub exhaust from cars and power plants.

Climate

Tornado intensity climbs in the United States

Larger paths of destruction may be tied to climate change.

Climate

Coldest place moves from one Antarctic site to another

New record low measured by satellite.

Climate

Methane emissions may be far higher than estimated

U.S. fossil fuel and cattle industries may emit far more methane than government estimates indicate.

Climate

Arctic algae crusts preserve climate data

The records show that sea-ice cover has been declining since 1850.