We met the Beatles legend for a vegetarian lunch.
I wanted to find a solution to the £20 billion worth of food thrown out every year in the UK.
The Met have imposed a section 14 order banning the climate group from any action related to its "Autumn Uprising".
The London mayor wants to create a new road tunnel in London despite announcing his plans to tackle climate change.
I put the best eco-friendly sex toys to the test, from solar-powered vibrators and low-airmile wands to, erm, a giant wooden dildo.
Look after the planet and have a mostly guilt-free comedown.
It's going to be hard to save the world with fossil fuel lobbyists rallying against the Paris Agreement during UN negotiations.
Tampons and pads all contain plastic, and generate more than 200,000 tonnes of waste per year. Here's what you can do about it.
All workers in all industries stopping work at the exact same time? It's exactly what the planet needs.
I spent the day with the Dharma Action Network For Climate Engagement and went on a meditation protest.
Around 60,000 people took part in a weekend of climate action, occupying the world's largest brown coal mine.
Ben van Beurden, who doubled his pay recently to £17.2 million, thinks that more people should be recycling and eating seasonal fruit.