Climate change is ONE of the causes of mass extinctions like the 6th Great extinction we are going through now

 If we look back to likely farming beginning on earth we see the beginning of mass extinction beginning then because of using slash and burn techniques to burn the residue corn husks and other things you are growing back into the soil to nourish it. The smoke from burning the slash 15,000 to 20,000 years ago began the present mass extinction of species now which could include humans at some point through something worse than Covid-19 at some point in the future combined with winds over 100 miles per hour becoming more common as well as major droughts (like we are presently seeing in places like Colorado to California. In other words most of the western United States from San Diego to Portland and East to Colorado is experiencing a 20 to 25 year drought right now and even the Colorado River is in danger of drying up this year and the Sacramento River might not be far behind in years like this one too. However, I think there is still enough rain north of Portland to keep the Columbia River Running. Because the Columbia River, the Sacramento River and the Colorado River are the three biggest Rivers west of the Rockies in the lower 48 United States.

So, because of this 25 year or more drought many species west of Colorado of animals, birds, and plants are likely to go extinct (at least in certain areas). So, though pockets of some species will survive (like along the coast of California, Oregon and Washington from high and low fog which comes off the ocean on prevailing winds, many other areas without water plants and animals might just go extinct this summer and fall and winter if rain doesn't return by the fall.

For example, where I live along the northern Coast of California trees still lot fine and often there is water on my deck from high and low fog condensation almost every morning that there has been high or low fog the night before. This keeps Redwoods and pine and oak trees alive close to the ocean from about Morro Bay North to the Canadian Border.

So, people living right on the coast from California north might be okay if they have desalination equipment to take the salt out of Seawater. However, inland hauling water in trucks to keep cities and people alive in the late summer and fall might be what many communities will have to do this year. And if there are fires there also will be less water to put out those fires except for vehicles capable of sucking up seawater to drop on fires which then will tend to kill the plants the seawater is dropped on.