Is Climate Change for Real? Part 2

Vaclav Havel thinks so too:

It is also obvious from published research that human activity is a cause of change; we just don’t know how big its contribution is. Is it necessary to know that to the last percentage point, though? By waiting for incontrovertible precision, aren’t we simply wasting time when we could be taking measures that are relatively painless compared to those we would have to adopt after further delays?

Maybe we should start considering our sojourn on earth as a loan. There can be no doubt that for the past hundred years at least, Europe and the United States have been running up a debt, and now other parts of the world are following their example. Nature is issuing warnings that we must not only stop the debt from growing but start to pay it back. There is little point in asking whether we have borrowed too much or what would happen if we postponed the repayments. Anyone with a mortgage or a bank loan can easily imagine the answer.

The effects of possible climate changes are hard to estimate. Our planet has never been in a state of balance from which it could deviate through human or other influence and then, in time, return to its original state. The climate is not like a pendulum that will return to its original position after a certain period. It has evolved turbulently over billions of years into a gigantic complex of networks, and of networks within networks, where everything is interlinked in diverse ways.

Its structures will never return to precisely the same state they were in 50 or 5,000 years ago. They will only change into a new state, which, so long as the change is slight, need not mean any threat to life.

Larger changes, however, could have unforeseeable effects within the global ecosystem. In that case, we would have to ask ourselves whether human life would be possible. Because so much uncertainty still reigns, a great deal of humility and circumspection is called for.

We can’t endlessly fool ourselves that nothing is wrong and that we can go on cheerfully pursuing our wasteful lifestyles, ignoring the climate threats and postponing a solution. Maybe there will be no major catastrophe in the coming years or decades. Who knows? But that doesn’t relieve us of responsibility toward future generations.