Climate Extremes Cause up to Half Global Crop Variability

Alex Wierbinski's picture

By Alex Wierbinski - Posted on 06 May 2019



Map of Global Regions
Continental regions for staple crops, Supplied by author, University of New South Wales..
Continental regions for staple crops, Supplied by author, University of New South Wales.


Turning Up the Heat

Climate extremes explain 18%-43% of global crop yield variations,
University of New South Wales, May 3, 2019.


Extreme Weather & Crop Yields
"Researchers from Australia, Germany and the US have quantified the effect of climate extremes, such as droughts or heatwaves, on the yield variability of staple crops around the world."

Regional Crop Production and Sensitivity to Climate Fluctuations
Regional Crop Production and Sensitivity to Climate Fluctuations, University of New South Wales.

Indicators ranking global and regional production by relevance for total crop production and sensitivity to climate fluctuations. Larger table.

Standard Variability
"Overall, year-to-year changes in climate factors during the growing season of maize, rice, soy and spring wheat accounted for 20%-49% of yield fluctuations, according to research..."

Climate Variability
"Climate extremes, such as hot and cold temperature extremes, drought and heavy precipitation, by themselves accounted for 18%-43% of these interannual variations in crop yield."

Main Cause
"...we found that the most important climate factors for yield anomalies were related to temperature, not precipitation..."

Global Production Centers Vunerable
"The research also revealed global hotspots - areas that produce a large proportion of the world's crop production, yet are most susceptible to climate variability and extremes."

That's North America & Europe
"We found that most of these hotspots - regions that are critical for overall production and at the same time strongly influenced by climate variability and climate extremes - appear to be in industrialised crop production regions, such as North America and Europe."

Local Cultures Vulnerable
"Outside of these major regions, in regions where communities are highly dependent on agriculture for their livelihoods, the failure of these staple crops can be devastating."


Extreme Weather

Extreme Weather Increasing

Warming Seas to Radically Increase Frequency of Extreme Storms by 2100

Climate Research, 2018: Extreme Heat Expanding with the End of Cold



Warming & Declining Crop Yeilds


Eco-Crash News: Warming to Disrupt Global Corn Production

2018: Free Press Failure puts 5 Major Crops In Crosshairs Of Climate




More Coordinated Global-Scale Heatwaves in Our Future 

2018 Fourth National Climate Assessment

Warm Soil, Heatwaves & Microbes: Two Pieces of Climate Change-Soil Disaster Research


More Warming Coming,

 Climate Models Underestimating Scale of Change: Twice What Climate Models Predict?


Climate Model Research

Worse models the Best?

Two Degrees Already Baked In

Improved Models Show Grim Future

Four Degrees by 2084




Eco Crashing News

May 2019 News of Man & Nature








Nature News


Climate Destruction News



Bee News

Bear News

Spider Forum

Bird News

Small Mammals

Frogs and Reptiles

Butterfly News


Health and Fitness

Mountain Safety

Mosquito News

Female Trail

High Sierra History


Astro-Phys, Space, & Science News

High Sierra Geology News

Fish, Oceans, & Water News






extreme weather, crop varibility, climate change, heatwaves, crop, climate model, information, links


Powered by Drupal, an open source content management system

Latest News: RSS FEED

Syndicate content

Support Tahoe to Whitney

The Tahoe to Whitney Trail Guide and Magazine are walked, written, funded, and supported by my efforts, with the help of kindred spirits and my sister.

We offer valuable Trail Guide, Skills, Weather, News and Analysis.

My goal is to get you out to see your natural and social potential. Help me keep this unique resource accessible and expanding towards its potential. We've a lot of miles to cover ahead...

If you feel these efforts are valuable, I'm cordially inviting you to support them, here:



I am currently working towards publishing the completed guide between Tahoe & Yosemite as an e-book, while converting this "blog" to a fine magazine format. You will like the results! Help Tahoe to Whitney reach its potential!


Why Support Tahoe to Whitney?
Mission Statement