Ecology, Climate Change and Related News

Conservation Science for a Healthy Planet

El Niño Might Speed Up Climate Change

Leave a Comment
  • Scientists have evidence that El Niño boosts CO2 levels, and they are pinning down how
  • As a carbon booster, El Niño could hasten rising temperatures, bringing the world to dangerous thresholds sooner than thought. It could also enhance feedbacks between climate and vegetation that could reduce plants’ ability to absorb CO2 in non-Niño years as well. If bad droughts or wildfires kill many trees, for example, forests and their carbon sequestering potential may take centuries to recover, if ever.

By Tim Vernimmen on December 1, 2017 Read full Scientific American article here

 Every two to seven years, abnormally warm water in the Pacific Ocean causes an atmospheric disturbance called El Niño. It often makes extreme weather worse in various places around the world: greater floods, tougher droughts, more wildfires. Now scientists have new evidence indicating El Niño conditions might also add extra carbon dioxide to the atmosphere as well as lessen the ability of trees to absorb the greenhouse gas…
….A recent article in Science about satellite measurements made during El Niño by NASA’s Orbiting Carbon Observatory-2 showed most of the extra CO2 originated in the tropics. It also suggested each tropical region contributed a similar amount of CO2 as in other strong El Niño years, each in its own way. In South America’s Amazon, for example, slower-growing plants absorbed less CO2, whereas in Africa, plants and soils released more of the gas….

View all articles

Comments are closed