Climate and energy news from Germany - by Pierre L. Gosselin
Net Benefit: Rising CO2 Improves Essential Crop Yields 3% Per Year – Critical to Feeding The WorldBy Kenneth Richard on 12. September 2022
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The elevated CO2 fertilization effect is driving global greening trends, pushing back deserts, enhancing photosynthesis by 30 to 50%, improving water use efficiency, and boosting crop yields by about 3% every year since 1961.
Recently atmospheric CO2 has been rising at a rate of about 3 ppm per year. While activists claim this is an existential problem for the climate, there will be a critical need for food production as the world population grows by another billion in the coming decades.
The good news heralded by a new study finds gross primary production increased by over 30% over the 2oth century, and the global maize, rice, soybean, wheat yields have increased by ~3% per year since 1961.
There are 2 main reasons for the rapid increase in crop yields in recent decades: “technological progress and CO2 fertilization” (Altimonti et al., 2022). Likewise, the root of the modern global greening phenomenon “pushing back deserts around the world” and improving water-use efficiency is “the increase of atmospheric CO2.”
https://notrickszone.com/2022/09/12/net-benefit-rising-co2-improves-essential-crop-yields-3-per-year-critical-to-feeding-the-world/
