For most countries around the world, sourcing energy entirely from wind, solar, geothermal, and hydropower by 2050 would reduce their energy needs and costs, improve air quality, and help slow climate change, according to a study in Environmental Science & Technology.
It would be too good to be true. Because there is too much Carbon in the air and it would be good if we actually could somehow get it out of the air again. But maybe that is 2120s technology. It would be amazing if the human species were be able to create the problem, realize the problem, counteract to the problem and solve the problem all in one century. But it will take several centuries of uncontrolled climate change before humans will be able to control it in any significant way - if it is not already to late.
Wait until you look up the discovery and destruction of the natural salt cycle of the world.