Press Association: A failure to tackle climate change will lead to a “global health catastrophe”, leading doctors have warned. But taking steps to cut the world’s carbon emissions, such as eating less meat and switching to cleaner energy, will have benefits for people’s health, an editorial published in both the Lancet and British Medical Journal (BMJ) said. And in a letter accompanying the editorial, medical chiefs in the UK, Ireland and around the world called on doctors to put pressure on …