this is bbc news. i'm annita mcveigh — live in glasgow — as the cop26 summit — the crucial climate change conference gets underway. 25,000 delegates will attend — from about 200 countries — to announce how they plan to cut emissions by 2030. uk minister alok sharma assumes presidency of cop26 climate change conference — and says that the conference "is our last, best hope" to keep global warming limited to 1.5c by the end of the century. if we act now and we act together, we can protect our precious planet. so, let's come together over these next two weeks and ensure that where paris promised,