IT'S NOT ADDING UP.
Countries, cities and companies are curbing emissions. Millions of us are installing solar panels, driving electric cars, eating vegetarian, using smart thermostats and biking to work.
But unfortunately, none of those actions will completely solve the climate change problem.
That's because the problem lies in the numbers: We need to reduce greenhouse gas emissions 80% by 2050 to keep Earth off a catastrophic warming path. Meanwhile, the Earth's population keeps climbing and with it, global energy demands.
So even if we aggressively deploy every current solution to the climate crisis - every known technology using today's sun, wind and water energy - the numbers mean we'll exceed society's carbon budget within a few decades.
The solutions on the table don't add up.
We can't keep doing more of the same and expect a different result.
We need something else, something we haven't thought of yet.
And we need to think of it soon so it's working by 2050