In this edition: What President Trump could mean for climate change, how medical students are helping in rural Nepal, and discussing diet drinks.

The podcast is presented by Gareth Mitchell, a lecturer on Imperial's Science Communication MSc course and the presenter of Click Radio on the BBC World Service, with contributions from our roaming reporters.

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News: Malaria infections and money matters – We discuss new research revealing that the more parasites a mosquito carries, the more likely it is to pass on malaria. We also look forward to the next Fringe event, which will focus on all things financial.

Trumping climate change: Ahead of Donald Trump’s inauguration as President of the United States, Grantham Institute Co-Director Professor Joanna Haigh talks about his track record, cabinet picks, and what the world can do if the US pulls out of climate agreements.

Enabling healthcare: Two students on the Imperial College Enables program – which involves undergraduate medical students delivering healthcare and education in remote locations – talk about their experiences in Nepal.

Diet drinks and weight: In surprising research, scientists say we don’t have good evidence that artificially sweetened drinks help us lose weight. We talk to the researchers about why that might be and how we can find out for sure.