Carbon dioxide levels averaged more than 410 parts per million in April and May at NOAA’s Mauna Loa Atmospheric Baseline Observatory, surging past yet another climate milestone. This is the sixth...

On Fri., Nov. 3, experts will discuss the key findings of the Climate Science Special Report (CSSR) which will be released by the U.S. Global Change Research Program that day. The report, which...

September 28, 2017

The forecast of ENSO is not the only thing scientists use when making seasonal forecasts. This post looks at another predictor that often is even better to use than ENSO.

image of a diver placing a CTD sensor on a reef
May 27, 2016

It's been a tough year for the globe's coral and the scientists who use coral to paint a picture of ENSO back thousands of years. 

April 24, 2015

ENSO is a complicated thing to model. What are the challenges, and how can we overcome them?

October 23, 2014

How can warming at Earth’s surface have slowed when energy accumulation is growing? The role of our oceans—including ENSO—is key.