Tamar Zandberg insists country can meet goal of carbon neutrality by 2050, defends new tax doubling price of disposable plasticware

UK's Boris Johnson warns that latest commitments to limiting global warming were 'drops in a rapidly warming ocean'; UN chief says he leaves Rome 'with my hopes unfulfilled'

World's biggest economies agree to reach target 'around mid-century,' will end funding for foreign coal use, but without plan for phasing it out domestically

As things stand 'there is a serious risk that Glasgow will not deliver,' warns UN Secretary-General Antonio Guterres, calling reports of progress 'an illusion'