One hundred years ago, El Niño was a story fishermen told about strange, warm waters that arrived around Christmas. Today it is one of the best-tracked patterns in climate science, and this winter's event is on pace to be the strongest ever measured.
NOAA just said El Niño is strengthening faster than expected, on track to rival the biggest events on record.
Meet the sun: a 4.6-billion-year-old nuclear reactor that delivers more energy to Earth in one hour than humanity uses in a year. Here is the full story of what it is and how it works.
Like thunderstorms and fireflies, brownouts are a part of summer for many homeowners. Here's what causes them, why they happen more in summer, and why the grid is more vulnerable to them than ever.
Far out in the Pacific Ocean, a potentially record-setting El Niño is developing, with near-certainty of a peak this winter. Here is what homeowners in Massachusetts and Illinois should know today.
