Businesses and city leaders are urged to back the Race to Zero campaign ahead of the COP26 summit in Glasgow next year.
The US Air Force will pit an advanced autonomous aircraft against a piloted plane in tests.
The RSPCA is caring for the gannet and suspects it was "blown off course".
Scientists want people to send them recordings of their wildlife experiences under the lockdown.
A top climate scientist has called for more investment in climate computing.
The Covid crisis is putting the survival of one of the UK's largest zoos at risk.
Russia's President Putin declares a state of emergency after 20,000 tonnes of oil leak into a river.