What Is a Carbon Sink?
A carbon sink is anything that absorbs more carbon than it releases, such as forests, soils and the ocean. Here is how natural…
What Is Tidal Energy?
Tidal energy is electricity generated from the rise and fall and the flow of the sea. Here is how it works, why it is so…
What Is Geothermal Energy?
Geothermal energy is heat drawn from inside the Earth, used to warm buildings and generate electricity. Here is how it works, why…
What Is Biomass Energy?
Biomass energy is power and heat made from recently living material such as wood, crops and organic waste. Here is how it works…
What Is an Ecosystem?
An ecosystem is a community of living things interacting with each other and their physical surroundings as a single working…