Definitely, although the evidence seems to point to warming as a greater risk than cooling. In addition, there is little evidence for the possibility of a catas

Definitely, although the evidence seems to point to warming as a greater risk than cooling. In addition, there is little evidence for the possibility of a catastrophic cooling capable of making the planet uninhabitable (and not just less ideal), whereas there is evidence that a runaway greenhouse effect could actually make the planet uninhabitable for humans (Venus).