
Climate is only 1 of 9 planetary boundaries for the path to our rare opportunity.
Despite the common assumption that Earth always will and always has been able to support human life, we live on planet with a dying biosphere that only will soon end this recent brief period of being able to naturally support complex life.
Our rare, if not unique, opportunity is to use the window rather than prematurely close it.
Assuming climate change is an existential threat and not merely an inconvenience, but CO2 emissions are only 1 of 9 planetary boundaries that must be observed in the to keep the window open.
The dawn of the Anthropocene puts risks not only long-term CO2 balance, but the challenge of working within all planetary boundaries and respect that growth within a shrinking biosphere is best put on hold for an age of one finite planet until we can seize the opportunity to escape the constraints of this one currently dying planet and find longer term solutions.