Is it too late for us to do anything meaningful about climate change?

It’s been a year of weather extremes. Floods have killed thousands in India and across Asia. Record hurricanes have wreaked havoc across the Caribbean and the US. Fires, driven by drought, lay waste to large parts of Portugal and California. Closer to home, unprecedented

If, as reported, climate change is one of the biggest global threats to humanity is it too late to do anything meaningful to tackle it?