What's happening?

Rising prices in shops. War in Europe. Climate change.

Earth is facing big problems. We need to find answers. Some think the best tool we have may be our minds.

Here are three big ideas that could change the world in 2023.

Living with nature. We need to stop using so much plastic. One idea is to make things from natural materials. One designer has already made veganFood and products which are entirely free from animal products. leather from mushrooms.

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Other companies have made roofs from seaweed and flower pots from lobster shelves.

Learning from history. We can start learning from the past. The Spanish city of Seville is building underground waterways to cool the city. They got the idea from a similar system used in Ancient PersiaA historic region of southwestern Asia, linked to the area that is now Iran. 3,000 years ago.

Local over global. Some cities are beginning to put limits on tourists to protect ancient buildings and local people. Others say we need to eat food grown near our homes, to help the planet and stop relying on far away places.

Yes! Humans have built amazing societies - all thanks to a series of great ideas.

No! Thinking is important, but it is the doing that really matters. Ideas alone take you nowhere.