"President Trump said if he couldn’t improve that deal he’d pull out, but diplomatic sources said there’s been no major effort at renegotiation."
"What’s more, many US states, cities and businesses remain committed to the Paris Agreement, whatever Mr Trump does."
"Campaigners say these now represent nearly 70% of US GDP and nearly 65% of the US population. If they were a country, this group would be the world’s second largest economy."
BBC News - Paris Agreement: Trump confirms US will leave climate accord
Trump confirms US will leave Paris climate accord