$ 50,000,000,000,000
Can you picture 50 trillion dollars? It’s quite a lot. Fifty trillion dollar bills stacked one on top of each other would easily reach into space. Laid out, they would cover nearly 200,000 square miles, almost the size of France. The likes of Elon Musk and Jeff Bezos, the richest people on earth, enjoy a personal wealth of around $200 billion each – a figure that is smaller than one per cent of $50 trillion.
Considered in the abstract like this, $50tn is an incomprehensible sum of money. But what if you were told it was also the total price of tackling climate change globally and saving the
