Cities are key to solving the climate change challenge.
This is the sine qua non for solving the climate problem.
"Now more than ever we must rededicate ourselves to solving the climate crisis.
Gore said: "[Paris] is not our one single shot at solving the climate crisis.
It's been said that solving the climate crisis will be a marathon, and we need to start running now.
The second problem is that solving the climate problem requires changing a vast energy infrastructure on a global scale.
"Silicon Valley has a unique role to play in solving the climate crisis and bringing an end to this recession," Mr. Hancock said.
We are hopeful that he will show the world that the United States is ready to lead and begin solving the climate crisis.
In his impressively researched manifesto for change, Brown bluntly sets out the challenges and offers an achievable road map for solving the climate crisis.
Moratorium on and phasing out of coal power stations without carbon capture, what Hansen calls the "sine qua non for solving the climate problem".
