US president-elect Donald Trump’s expected climate rollbacks will likely have a “small” impact on global warming, as long as other countries resist the temptation to slacken their own carbon-cutting efforts, new research found Thursday. US president-elect Donald Trump’s expected climate rollbacks will likely have a “small” impact on global warming, as long as other countries resist the temptation to slacken their own carbon-cutting efforts, new research found Thursday. Environment Phys.org – latest science and technology news stories