Clean energy

The burning of oil, gas and coal - either for heating or the generation of electricity – contributes to climate change by releasing carbon dioxide (CO2) into the atmosphere.

But there are other types of energy generation that don’t emit CO2.

These include wind, solar and hydro-electric power. Collectively, these kinds of technologies are known as renewable energy as they depend on a resource (the sun, wind etc) that won’t eventually run out – unlike, oil, coal and gas.

Nuclear power also provides low-carbon energy, but it’s not clear how low this is.

Challenge 5

Keep the warmth in the areas where it’s wanted

Keep the warmth in the areas where it’s wanted. Certain parts of buildings – e.g. foyers, storerooms corridors - don’t need to be kept as warm as others. The trick is to keep the warm air where it is needed, and prevent it escaping into areas where it isn’t. Modern heating systems can heat various parts of a building differently, and shutting doors will also help.