Ellen Coquio on a new project to boost Sussex's coastal defence.
James Mills looks in to the Australian government's environmental policy, and details how they're failing to tackle climate change.
Amelia Frizell-Armitage on how agriculture could reduce emissions.
Jeremy Brown assesses the credentials of the Energy Bill Revolution, a campaign that proposes an alternative to government legislation.
Mabon Elis looks at new research which suggests that grasshopper mice are developing an immunity to scorpion venom.
Dominic Burchnall talks to Simon Singh on his new book, The Simpsons and Their Mathematical Secrets.