National Geographic stories take you on a journey that’s always enlightening, often surprising, and unfailingly fascinating.
What happens when the planet loses some of its ability to cool itself?
Since satellites began regularly measuring Arctic sea ice in 1979, it has declined sharply in extent and thickness.
A tree-climbing scientist takes the measure of a 3,200-year-old, 247-foot-tall sequoia.
Find out why you shouldn’t panic—at least, not yet.
In his award-winning film, photographer Pete McBride follows Jonathan Waterman's attempt to paddle down the Colorado River from source to sea, with surprising results.
A crisis is looming: To feed our growing population, we’ll need to double food production. Yet crop yields aren’t increasing fast enough, and climate change and new diseases threaten the limited varieties we’ve come to depend on for food. Luckily we still have the seeds and breeds to ensure our future food supply—but we must take steps to save them.
From the January 2008 issue of National Geographic magazine. In Indonesia, life plays out in the shadow of fiery peaks.
Tease your brain with this geometric puzzle.
Freshwater fish are dying. Scientists have a rescue plan.