A mother writes about joining an anti-fracking protest because of the threat to her children's lives from future global heating.

If you are a young person today, there is considerable danger you will be killed by global heating — not soon, of course, but when it reaches the point where millions are starving, and fighting over food, globalized supply chains could break down, which would make a lot of technology and industry stop working world-wide.

We can't predict what will happen, as there are too many imponderables. Maybe some lucky surprise will avert the disaster, but do you want to bet your life on that? If we are to avoid it, we have to curb the greenhouse gas emission now.