Trump and Biden offer starkly different visions of US role in world

The world is anxiously watching the election, with the candidates far apart on issues such as the climate crisis and nuclear weapons

Foreign policy barely gets a mention in this US election, but for the rest of the world the outcome on 3 November will arguably be the most consequential in history.

All US elections have a global impact, but this time there are two issues of existential importance to the planet - the climate crisis and nuclear proliferation - on which the two presidential candidates could hardly be further apart.