Science Weekly Folgen

For a long time, western science and Indigenous knowledge have been seen as distinct ways of learning about the world. But as we plunge the planet deeper into environmental crises, it is becoming clear that it is time to pay attention to both. Bridging that gap has been the driving force behind the career of the botanist and author of Braiding Sweetgrass, Robin Wall Kimmerer. She tells Madeleine Finlay what we can learn from the most ancient plants on Earth, why we need to cultivate gratitude for the natural world and what western science can learn from Indigenous knowledge. Help support our independent journalism at theguardian.com/sciencepod

It’s been a busy week in the world of artificial intelligence. OpenAI found itself in hot water with Scarlett Johansson after launching its new chatbot, Sky, drawing comparisons to the Hollywood star’s character in the sci-fi film Her. In South Korea, the second global AI summit took place, and a report from the Alan Turing Institute explored how AI could influence elections. The Guardian’s UK technology editor, Alex Hern, tells Madeleine Finlay about what’s been happening. Help support our independent journalism at theguardian.com/sciencepod

Concrete is strong and durable – which is why it’s the basis for so much of our infrastructure. It’s also terrible for the planet, due to one key ingredient: cement, which is responsible for almost 90% of concrete emissions. Researchers have now found a way to recover old cement while also reducing the environmental impact of recycling steel. Madeleine Finlay speaks to Julian Allwood, professor of engineering and the environment at the University Of Cambridge, to find out how the process works, and what it could mean for the emissions generated by the construction industry. Help support our independent journalism at theguardian.com/sciencepod