Are you REALLY accepting that you and your family can die due to human work? Really? Feel free to answer that.
Pretending that this is just normal, and not accepting that humans can have an impact is kind of nuts. What odds of human cause do you want before anything is done? 5, 10, 50, 90 percent? If there's a chance that we can slow this change down, and save people's lives- why should we not?
Justifying this change in atmosphere that "it happened before so we will be ok" ignores what can and is happening just so people who are far richer than you can make a whole lot more money. Funny how we pan communism for killing a lot of people, from Russia of more than a few periods to China now with their emissions. Yet when it comes to capitalism, doing the exact same thing, just on a different scale, is fine.