LONDON, Nov 13 (Reuters) - British Prime Minister Boris Johnson said on Saturday the climate deal struck at the COP26 conference in Glasgow was a big step forward and he hoped it would mark the beginning of the end of climate change. "There is still a huge amount more to do in the coming years," Johnson said in a statement. "But today"s agreement is a big step forward and, critically, we have the first ever international agreement to phase down coal and a roadmap to limit global warming to 1.5 degrees.e that we will look back on COP26 in Glasgow as the beginning of the end of climate change, and I will continue to work tirelessly towards that goal."