How Climate Models Work — and Why We Should Trust Them
Climate models are complex, but understanding their basis helps evaluate their reliability. Here is how they work and what gives scientists…
Elena Marsh
452 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.
Water Scarcity Explained
Water scarcity is when demand for fresh water outstrips the available, reliable supply. Here is what causes it, the impacts on people and…
Elena Marsh
461 reading now
Why Loneliness Is a Public Health Crisis — and What Could Actually Help
Loneliness is more common than most people admit and has health consequences as serious as smoking 15 cigarettes a day. Here is what the…
Elena Marsh
443 reading now
What Is a Carbon Footprint (and How to Shrink Yours)?
A carbon footprint is the total greenhouse gas emissions caused by a person, product or organisation. Here is how it is measured, what the…
Elena Marsh
404 reading now
How Electric Cars Work
An electric car runs on a battery and electric motor instead of a petrol or diesel engine. Here is how the battery, motor and charging…
Elena Marsh
357 reading now
Renewable Energy Explained: Solar, Wind and More
Renewable energy comes from sources that naturally replenish, such as sunlight, wind and water. Here are the main types, their strengths…
Elena Marsh
419 reading now
Recycling Explained: What Really Happens to Your Waste
Recycling turns used materials back into new products, but only if they are sorted and clean. Here is how the process works, why…
Elena Marsh
397 reading now
The Greenhouse Effect, Explained
The greenhouse effect is the natural warming that happens when gases in the atmosphere trap heat from the Earth. Here is how it works…
Elena Marsh
416 reading now
Ocean Acidification: The Other CO2 Problem
The ocean has absorbed around a quarter to a third of human CO2 emissions, and its surface waters are now about 30% more acidic than before…
Elena Marsh
404 reading now