Add to this all other environmental worries, and you must conclude that the key existential question—can humanity realize its aspirations within the safe boundaries of our biosphere?—has no easy answers. But it is imperative that we understand the facts of the matter. Only then can we tackle the problem effectively.

If industry prevails and we stick with a business-as-usual scenario — and pretty much all data indicates this is what we are doing — we’ll blow through our carbon budget in less than seven years.9 Global temperature rise will continue on its trajectory of 3°C10 increase or worse by the end of the century, and, in environmentalist Bill McKibben’s wo

Climate catastrophe is coming. We know this. What we don’t know is how bad it will be. In the best case scenario, an unprecedented global Green New Deal rapidly transitions the world economy off of carbon, holding global temperature rise under 3°C.61 This causes large-scale polar ice melt, 12 inches of sea level rise by 2050,62 and major habitat di

There’s another future scenario lurking underneath this one that is much more likely to happen—in fact, it’s almost inevitable, according to most climate scientists. It’s the possibility that many cities and nations will need to relocate their entire populations over the next fifty years, because of the growing climate crisis. If you change “astero

‘we are at a critical juncture in human history…natural disasters might cause governments to collapse’.

If industry prevails and we stick with a business-as-usual scenario — and pretty much all data indicates this is what we are doing — we’ll blow through our carbon budget in less than seven years.9 Global temperature rise will continue on its trajectory of 3°C10 increase or worse by the end of the century, and, in environmentalist Bill McKibben’s wo