In 100 days, the climate emergency may be even more serious. That's why we’re launching this series | John Mulholland

• The day after the election, the US is poised to withdraw from the Paris climate agreement.
• The Guardian believes the climate emergency is the defining issue of our time. Make a contribution today to support our journalism.

On 4 November, the day after the presidential election, the US is poised to withdraw from the Paris climate agreement. The agreement, which came together after years of diplomacy by the Obama administration and other global leaders, commits 200 countries to chart a new course in efforts to combat climate change.

But very soon the United States may not be one of them.