The Circular Economy, Explained
The circular economy keeps materials in use for as long as possible instead of making, using and throwing away. Here is what it means, the…
Elena Marsh
333 reading now
Elena Marsh
Environment & Climate Correspondent
Elena Marsh reports on climate, energy and conservation, with a focus on the science and policy shaping the planet's future.
Carbon Offsetting Explained
Carbon offsetting lets you pay for emissions cuts or removals elsewhere to balance your own. Here is how it works, why quality varies so…
Elena Marsh
348 reading now
What Is Net Zero?
Net zero means cutting greenhouse gas emissions as close to zero as possible and balancing the rest by removing an equal amount from the…
Elena Marsh
457 reading now
What Is Light Pollution?
Light pollution is excessive or misdirected artificial light at night. Here is what causes it, why it harms the night sky, wildlife and…
Elena Marsh
433 reading now
What Is Sustainable (ESG) Investing?
Sustainable investing aims to put money to work while considering environmental, social and governance factors. Here is what ESG means, the…
Elena Marsh
367 reading now
What Is Eco-Anxiety?
Eco-anxiety is the chronic worry and distress people feel about climate change and environmental decline. Here is what it is, why it…
Elena Marsh
478 reading now
Understanding the Air Quality Index
An air quality index turns complex pollution measurements into a single, easy number. Here is what the main pollutants are, how the UK…
Elena Marsh
388 reading now
Deforestation: Causes and Consequences
Deforestation is the permanent clearing of forests for other uses. Here is what drives it, why it matters for the climate and wildlife, and…
Elena Marsh
450 reading now
Biodegradable vs Compostable: What's the Difference?
'Biodegradable' and 'compostable' are not the same thing, and the difference matters for what you buy and how you dispose of it. Here is a…
Elena Marsh
443 reading now