JoNova

A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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In a warming world we may get overun by cheap soy and corn

New research shows that the impending climate disaster puts the world in danger of growing too much corn and soy. People won’t know what starving is!

H/t to CO2Science

Qiao et al discovered that when temperatures are raised by a “catastrophic” 2 degrees C, and CO2 is raised to 700 unthinkable ppm corn (aka maize) increases its yield by a remarkable 25%. When hit by both high temperatures and extra CO2, soy bean yield increased even more — by 31%.

Presumably this means crop prices will fall and corn and soy may take over your garden. (So make sure you put in a solar panel to control those new weeds!)

Rumour that nutrient densities will fall — proved to be false. Increased temperature raised the oil content of both crops. And the combo of warmer weather plus CO2 increased most of the nutrients as well. Both crops had more phosphorus, potassium, iron, and zinc. There was a statistically small decrease in calcium in maize, so small it may not be there. The only mineral that definitely declined was manganese in soybeans, and as far as humans go,  there is apparently no one on Earth who has a clinical manganese deficiency [...]

Burn oil so we can eat more chocolate

The fake scare of the season — “climate change is impacting chocolate production”.

Chocolate is produced from the beans that grow on cocoa trees. These plants can only grow in a fairly narrow range of conditions, which makes them vulnerable to changes in the environment.

Unfortunately, climate change is threatening some of these key growing regions. According to the IPCC, rising temperatures and a relative reduction in rainfall could make areas like West Africa less suitable for cocoa production in the future. Changes to the climate are also pushing cocoa-growing regions to higher altitudes in some parts of the world, which can make some crops unsustainable.

We can see just how hard cocoa crops have been hit by record heat and 500 billion tons of carbon.

Global Cocoa production

Since 1989 humans have put out more than 50% of all anthropogenic CO2 emissions since homo sapiens went sapien. There is an undeniable trend here.

Happy Easter to everyone.

h/t Dave B