In celebration of Citizen Science Month, see a compilation of SEI's citizen science research and activities across the world.
Sarah West talks to Which? about the challenges of finding nappies that don't harm the environment.
![Green wall at Westfield, London, UK. This plant-clad wall runs along the Southern Terrace. Photo credit: David Hawgood [CC BY-SA 2.0] via Wikimedia Commons](https://cdn.sei.org/wp-content/uploads/2017/08/sei-2017-publication-3185-wikipediacommons-green-wall-at-westfield---geograph.org-.uk---1376705-550x.jpg)
