logo
episode-header-image
Apr 2021
37m 42s

What can we learn from wastewater?

Bbc World Service
About this episode
Most of us don’t like to dwell on our toilet habits, but this week Crowdscience has gone down the drain to discover what wastewater can tell us about our health. It’s been more than a year since scientists across the globe started to track the spread of Covid-19, with help from home test results and hospital data. Marnie Chesterton investigates the latest t ... Show More
Up next
Aug 22
How does camouflage work?
CrowdScience listener Paul from Uganda is fascinated by military uniforms. The outfits of so many different armies, from different countries all around the world, often look remarkably similar – mottled shades of olive green camouflage. Where did it come from? How does it work as ... Show More
36m 39s
Aug 15
How long does light last?
When listener Rob from Devon, UK, heard of a newly detected planet light years away, he was struck by the sheer scale the light must travel to reach us here on Earth. It got him wondering: How long does light last? What’s the oldest light we’ve ever observed? And does light ever ... Show More
26m 29s
Aug 8
Can we stop the rain?
CrowdScience listener Rit, from Pune in India, is staring out of his window at the falling rain. It’s been pouring for four days now, and shows no sign of stopping. The laundry is piling up, all his shoes are wet, and he’s worried about the effect it’s having on the environment, ... Show More
32m 21s
Recommended Episodes
Oct 2022
Why study sewage?
Leon Barron monitors pollution in our rivers, keeping tabs on chemicals that could be harmful to the environment and to our health. He’s also gathered intelligence on the behaviour of millions of Londoners by studying the water we flush down the loo. His analysis of sewage reveal ... Show More
28m 37s
Jun 2021
Cov-Boost trial; SARS-Cov 2 infection in action; sapling guards; why tadpoles are dying
Scientists are now looking at the question of third doses of vaccines against SARS-Cov2, and this week the Cov-Boost trial was launched. It’s being run from University of Southampton and is going to be using seven different vaccines, some at half doses, in people over the age of ... Show More
30m 22s
Dec 2021
Omicron – mild or monster?
Studies from South Africa and the UK suggest Omicron may be a mild infection for the majority of people. Hospital admissions are down when compared with other variants. However, the virus is replicating at a much faster rate than earlier variants and is able to overcome vaccines ... Show More
28m 21s
Feb 2022
How Can Wastewater Help Us Track Coronavirus?
Our poop is filled with useful information about us, including viruses like the one that causes COVID-19. Learn how researchers are using wastewater to warn communities about potential outbreaks in this episode of BrainStuff, based on this article: https://science.howstuffworks.c ... Show More
7m 34s
May 2024
Can we get plastic waste under control?
As the UN tries to get a global agreement on plastic waste we hear from two delegates at the conference in Ottawa; John Chweya, a Kenyan waste picker, and plastics scientist, Steve Fletcher, discuss the impacts of plastic pollution and the possible solutions. Taylor Swift’s new a ... Show More
27m 44s
Mar 2022
Covid in the sewers
Analysis of wastewater from sewage systems has provided an early warning system for the presence of Covid19 in communities – showing up in the water samples before people test positive. It’s also possible to identify the variants and even specific genetic mutations. Davida Smyth ... Show More
58m 48s
Sep 2021
New evidence for SARS-CoV-2’s origin in bats
Researchers studying bats in Northern Laos have found evidence that brings us closer than ever to understanding the origin of Covid-19. Since the beginning of the coronavirus pandemic scientists have tried to pin-point the exact origin of SARS-CoV-2. But recent evidence from the ... Show More
1h 3m
May 2022
The Ebb and Flow of the Tidal Power Revolution
This week, we begin with a disturbing medical mystery. Since the start of the year, almost 200 children worldwide have fallen ill with hepatitis—or liver inflammation—without any apparent cause. Most of the children are under five, and nearly half of the cases were in the UK. Vic ... Show More
43m 50s
Nov 2021
Bambi got Covid
Up to 8 percent of deer sampled in studies in the US were found to be infected with the SARS-Cov-2 Virus. Suresh Kuchipudi from the Department of Veterinary and Biomedical Sciences at Penn State University in the US says what they are seeing is a mixture of human to deer and deer ... Show More
53m 28s
Sep 2023
What makes a healthy river?
River health has captured the public imagination, particularly as overspills from sewers have been getting more attention in the media. But the condition of a river is so much more complicated than what flows into it from our water treatment systems. Agriculture, roads, how we us ... Show More
36m 11s