A new NOAA-sponsored report shows that unprecedented warming air temperature in 2016 triggered massive declines in sea ice and snow cover across the Arctic, and brought a record-breaking delay to fall sea ice freeze up. Learn more through our image highlights of the 2016 Arctic Report Card.
A record-smashing hurricane season in the central North Pacific. Water rationing in Puerto Rico. The biggest one-year jump in atmospheric carbon dioxide concentrations. These and more of 2015's extreme events had one thing in common: El Niño.
Human activities, mainly burning fossil fuels, are increasing the concentration of carbon dioxide in our atmosphere, amplifying the natural greenhouse effect.
Free to good home! NOAA Climate.gov provides hundreds of images and maps that are free for re-use. This page gathers up links to our most popular El Niño and La Niña images.
