Donald Trump. CNN

The atmosphere at President Donald Trump's press conference on Thursday to announce he would pull the US out of the Paris climate accord appears to be festive, according to pictures and videos posted on social media.

Reporters posted videos on Twitter showing a Marine Corps band playing jazz on the Rose Garden lawn ahead of the announcement. Bloomberg White House reporter Jennifer Epstein said the band was playing as if it were a "wedding cocktail hour."

The Paris Agreement, signed in December 2015 by 195 countries, aims to cap the increase in the planet's overall temperature at less than 1.5 degrees Celsius (2.7 degrees Fahrenheit) above preindustrial levels.

Trump said he would begin negotiations to reenter the agreement or negotiate a new one he said would be fairer to US interests.

Here's some footage and photos from the announcement: