Donald Trump will make 'final decision' on Paris climate deal next week

• President resists pressure from other G7 countries to support treaty
• Merkel says discussions on climate deal 'difficult and unsatisfactory'

Donald Trump has resisted pressure from Europe, Canada and Japan to declare his support for the UN's landmark climate change treaty signed in Paris in 2015, marking a defiant end to his first international trip as US president.

The deadlock at the end of the G7 summit in Italy left other world leaders frustrated. The German chancellor Angela Merkel said the discussions "had been very difficult and not to say very unsatisfactory.