Even if it works perfectly, there at least one way it may backfire. Right now the increase in temperature is unprecedentedly fast, but many organisms can still

Even if it works perfectly, there at least one way it may backfire. Right now the increase in temperature is unprecedentedly fast, but many organisms can still adapt because the rise is spread over decades. If at any time during the next couple of thousands of years our society is unable or unwilling to send the required payloads to cool earth, then the temperature will increase by several degrees in a few years, and fewer organisms will be able to adapt.