Germany steps up criticism of Donald Trump

Mrs Merkel, speaking at a conference on sustainable development in Berlin, reinforced Germany’s commitment to tackling climate change and said it was vital not to varnish over differences with allies.

Mrs Merkel did not specifically mention Mr Trump but quoted a 1963 speech by former President John F. Kennedy in Frankfurt, where he told the audience “those who look only to the past or the present are certain to miss the future.”