And Paris Mayor Anne Hidalgo says USA decision to pull out of the climate accord "is a mistake with dramatic consequences".
The day after the USAannounced its withdrawal from the Paris climate pact, Beijing expressed its willingness to step in and champion the cause. (The others are Nicaragua, which did not sign it because the political leaders of that country felt it was not strong enough, and Syria, which was in the midst of civil war and whose leaders were hardly in a position to engage in global talks.) Beyond the wholly understandable outrage, can there be positive progressive action to counter Trump's pernicious abandonment of the people of the planet?
Mrs Merkel, a pastor's daughter who is usually intensely private about her faith, said the accord was needed to preserve our Creation.
"Climate change is the greatest existential threat to our world and our nation", he said.
Though China's stance has changed little, its diplomatic position was enhanced first in Paris, where joint pledges made by Presidents Barack Obama and Xi Jinping helped push the deal over the line, and now by its efforts to keep the Paris agreement in play in the face of USA opposition.
Nike has also weighed in on the issue following the announcement.
Mrs May said she spoke to Mr Trump at the G7 summit last week and again last night, making the concerns of the United Kingdom known.
"Two-hundred-thousand people die every year in the United States from air pollution and half of our rivers and streams are too polluted for our health", he said. "On the contrary, in Germany, in Europe and in the world, we will combine our forces more resolutely than ever.to address and successfully tackle big challenges for humanity such as climate change".
A small group of skeptics some of whom are in the TrumpWhite House believe this is a hoax and one that could be damaging to business.
Despite this, a number of figures from USA industry expressed their dismay at Mr Trump's move.
Climate change could lead to political instability, increased societal tensions and could place new burdens on economies and governments, an AAAS report stated.
With the United States withdrawing from the deal, Elon Musk, CEO of Tesla and SpaceX, has quit two of the president's business advisory councils.
Goldman Sachs CEO Lloyd Blankfein called the decision a "setback" for the environment and for U.S. global leadership in his first-ever tweet.
"In Berlin, Greenpeace activists projected Trump's silhouette onto the side of the US embassy along with the words "#TotalLoser, so sad!" According to the terms of the climate deal, the withdrawal won't become effective until shortly after the 2020 presidential elections.
Environmental groups were scathing. The US Sierra Club, citing Mr Trump's endorsement of what he regards as clean coal, tweeted: "Clean coal, you can find that next to the unicorns and leprechauns".