Is London ready for what's coming?

You probably don't want to hear this, but experts warn that heatwaves in London are likely to become more common due to human-driven climate change. Some projections suggest temperatures in the capital could reach 45°C in the future - a level of heat the city's infrastructure was never designed for. From the London Underground to our housing, how is the city adapting? And should more be done to help keep a warming city cool?