Hansen now argues that we need to lower the limit of "acceptable" warming by a whole degree to 1 degree Celsius -- a number we're already eight-tenths of the way to reaching globally, and that we passed years ago in the Arctic.
So that's the situation we're in. It's very obviously a dire one.
Which raises, the question -- what do we do about it?
With global climate change rapidly reaching the point of massive worldwide destruction of the environment that sustains our lives, how do we stop it in its tracks and maybe, just maybe, reverse some of the damage we've already done?
Well, first we keep the carbon in the ground by ending all subsidies and imposing a worldwide carbon tax on the production, emission and use of all greenhouse gasses.
Then we do what we should have done decades of years ago -- we leave fossil fuels behind once and for all.
This is more possible now than at any time in our history. As the Department of Energy recently concluded, the cost of the five leading clean energy technologies has fallen between 40 and 94 percent since 2008 alone.
As dark and gloomy as the situation is, we have an opportunity here to create a much better future that is very well within our grasp.
Let's get to work before it's too late.
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