During the second half of December and the beginning of January, places from Sri Lanka to northwest Australia experienced exceptionally heavy rains, flash floods, and landslides.

The tropical Pacific Ocean sloshes around like water in your bathtub.  These waves are as important as the vortex of water that spirals down the drain.  

This page describes some of the 50 Essential Climate Variables identified by the Global Climate Observing System (GCOS) for worldwide monitoring.

This page describes some of the 50 Essential Climate Variables identified by the Global Climate Observing System (GCOS) for worldwide monitoring.

This page describes some of the 50 Essential Climate Variables identified by the Global Climate Observing System (GCOS) for worldwide monitoring.

Observations of global temperature going back to 1880 reveal that our planet's temperature is rising. This animation shows maps of yearly temperature compared to the 1981-2010 average from the start of the historical record through 2014--the warmest year on record. Each year's map is synced with a graph showing the evolution of our planet's temperature as compared to the 20th-century average.

Blogger Tom Di Liberto explains the math behind some of the tests that seasonal forecasters use to check forecast skill, and then shows how skillful the past decade's winter forecasts have been.

Summary: This interactive site shows how the social and economic characteristics of the Great Lakes region are impacted by regionally specific changes in climate.

Earth's surface temperature in 2014 was the warmest on record. Five months set new records for warmth, and a sixth tied for record warmest.

Radar technology enables weather observers to track rain and snow storms in real time.