Earth and Leaf

La Nina Returns – Is it Going to Save the World?

La Nina returns. El Nino is over. If correct then this is fantastic news for the planet and for the Amazon rainforest. IF it cools the oceans as it usually does …

There are two unusual, but significant climate patterns in the Pacific Ocean, El Nino and La Nina. Normally trade winds blow west along the equator, taking warm water from South America towards Asia. To replace that warm water, cold water rises from the depths, upwelling.

El Nino exacerbates global warming. La Nina cools the planet. How?

During La Nina the trade winds blow more strongly, causing more upwelling. Quite simply this cools the Pacific Ocean and therefore the globe.

https://oceanservice.noaa.gov/facts/ninonina.html

Of course, this merely buys us time.

https://www.bbc.co.uk/news/science-environment-68826152

Iain Dunn

Founder of Earth and Leaf Community Interest Company. Lifelong career and education in agriculture. Now researcher and writer and sustainability campaigner.

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