When the US formally left the Paris climate agreement, Joe Biden tweeted that “in exactly 77 days, a Biden Administration will rejoin it”.

The US announced its intention to withdraw from the agreement back in 2017. But the agreement’s complex rules meant formal notification could only be sent to the United Nations last year, followed by a 12-month notice period — hence the long wait.

While diplomacy via Twitter looks here to stay, global climate politics is about to be upended — and the impacts will be felt at home in Australia if Biden delivers on his plans.

Read the full article on The Conversation website, authored by Dr Christian Downie