This week we cover the powerful speech of the Secretary General of the United Nations opening the COP25 conference.

This week the European parliament declared a global “climate and environmental emergency”; COP 25 will be held in Madrid in the coming week; Greta was still mid-ocean for the climate strike; Forest fires sweep Australia and for the topic of the week, we look at what's gone wrong at the EPA.

This week, as the US formally gives notice of its withdrawal from the Paris agreement, 11,000 scientists endorse a letter entitled “Scientist’s Warning of a Climate Emergency”. Also this week, a study concludes that sea level rise could affect 3 times a many people by 2050 as previously thought.

This week we look at the admission from an Exxon scientist that they have known how much CO2 and how much warming would be caused by the use of oil since at least 1982. We also retell the story of lead in gasoline and the heroic efforts of Clair Patterson that eventually resulted in its removal.

This week Greta tells a rally that young people must be prepared to strike for a very long time; the IMF says a fossil-fuel emissions tax would be the most effective way to reduce air pollution; almost 17,500 lives could be saved if just 27% of china’s cars were EVs and BA will offset all domestic flight emissions from next year.

This week we try to answer the question "Is it OK to Fly?"

David Attenborough warns that the Holocene has ended; the United Nations summit fails to achieve its objectives; Al Gore writes in the New York Times; Climate strikes continue to grow and the topic of the week is Wright's Law.

Millions around the world took part in the climate strike on Friday; Amazon to reach carbon zero by 2040; Daimler Benz to focus on electrification; Sudden Stratospheric Warming over Antarctica and what was the real death toll of Dorian?

This week a new poll shows that the number of Americans that believe climate change is a crisis is growing; an area of forest the size of the UK is destroyed every year; Arnie says Trump can’t erase a decade of clean air progress with a sharpie and in the topic of the week we look at the environmental record of the five big tech companies.

This week we look at the benefits of electric cars, including recommendations on which cars to buy and what to look for.

This week, as the amazon burns, Trump is a no-show at G7 talks on the climate and biodiversity; Greta Thunberg arrives in New York  after 16 days at sea; The outlook for the Great Barrier Reef has deteriorated from poor to very poor and there are plans to shut down Washington DC on 23 September

In the topic of the week, we conclude our look at nuclear power