Jo Nova on Tuesday. The Green Religion of Intolerance.
Something else. Solar panel toxic waste.
Carbon dioxide is a colourless gas that occurs in a barely measurable trace in the air we breathe.
It is the foundation of life on earth because it is the starting point for building all the chemicals in living matter.
The process that occurs in green plants called photosynthesis uses sunlight, CO2, water and some essential minerals to start the amazing production process that led from the first primitive single-celled organisms through the evolutionary pathway to every form of life on earth at present.
Over billions of years the amount of CO2 in the atmosphere declined from almost 50% to modern times when it is around 0.04% and it is measured in parts per million. During the Little Ice Age before the Industrial Revolution the level was below 300 parts per million. It is now a little over 400 parts per million and increasing at the rate of 2 ppm each year.
The level fell below 200ppm during the last Ice Age (not the Little Ice Age) threatened life on earth. The increase in CO2 since then and especially after the industrial revolution has rescued life on earth from that precarious situation and satellite observations since 1980 show a remarkable greening of the planet.
Still the current level is far short of the optimum for most plants and the process of greening will continue as long as the supply of CO2 continues to improve.
There is some concern about what might happen when the level of CO2 doubles from the 300ppm in 1850. With 400ppm at present, increasing by 2ppm per annum we have a hundred years to plan.
So go back to school and learn some science!
PS. 0.4% CO2 corrected to .04%. The link in the post was only inserted to show the critical level in the Little Ice Age but there is a lot more valuable information there in a short and clear read. Highly recommended
From Forest Stylist in the comments. As most plants evolved with CO2 levels 1500ppm to 4000ppm, 400 ppm represents a starvation diet. Some of the increase in crop productivity thought to be due to genetic improvement may in fact be due to higher CO2 levels (which makes photosynthesis more efficient at a given humidity).
See also Chapter 13 in Climate Science: The Facts 2017 summarized in three posts last year including this one.
Jo Nova on bushfires, CO2 and other stuff.