It's not capitalism per se but technology is increasing at an arguably exponential rate. The problems we have and worry about now simply might not be relevant to the future. Someone develops a really efficient battery next year allowing for effective electric cars, and suddenly we are laughing at the people who thought global warming would be an issue.

And capitalism isn't that bad. If a resource is running out, people can predict that decades in advance and have strong incentive to conserve it or invest in replacements. The price gradually rises over many years giving the world time to adapt, it doesn't just disappear overnight.