tonight, we prove once more that the true strength of our nation comes not from the might of our arms or the scale of our wealth, but from the enduring power of our ideals. this is bbc news. the top stories. world leaders at the cop26 climate conference in glasgow are warned they must take urgent action to prevent catastrophic lobar warming. a report says it has been the hottest on record while extreme weather conditions have become the new normal. it weather conditions have become the new normal. it has weather conditions have become the new normal. it has been called the world s best last chance to get runaway climate change under control what does this actually mean and how do we get here? our science