MathsEnvironment
A bug's life
Most cicadas live for just a few years, but periodic cicadas live much longer, with lifespans of 13 or 17 years depending on the species.
Leaving messy footprints
The ‘carbon footprint’ is a measure of the amount of pollution that is created by doing certain things; but why does that matter, and what does it actually mean?
Caring for the environment
Carson was a lone voice speaking out for statistical scientific studies on pesticides, which helped spark the environmental movement.
Whale watching
How do you count the whale population when there are only a few hundred of them and they keep out of sight?