Greta Thunberg is protesting about climate change. We know from our work on rocks and fossils that our planet's climate has changed a lot over the last 4.8 billion years, in fact our planet's climate is always changing naturally. So what is Greta protesting about?
The climate change that Greta is protesting about is man-made climate change and this is MUCH faster than natural climate change. Because the change in our climate is happening faster than it should, animals and plants may not be able to adapt to their changing habitats quickly enough and are at risk of extinction.
Man-made climate change is causing our planet to warm up. We love it when the sun shines, so why is this a problem?
If the earth gets warmer, what might happen to the cold parts of the earth like the Arctic Circle and Antarctica?
Talk to your helper about why this could be a problem.
If the ice at the poles starts to melt, where will the water go?
Talk to your helper about why this might be a problem for people who live near the seaside and people who live on small islands like this one.
Scientists know that warmer air in our atmosphere will increase the number of storms in some parts of the world.
Talk to your helper about why it might be a problem if we have more big storms.
Scientists know that warming the planet will change the amount of rain that falls in some parts of the world.
Talk to your helper about why it might be a problem if some areas of the world get less rain than they used to.
Talk to your helper about why it might be a problem if some areas of the world get more rain than they used to.
So what can we do to help?
Greta Thunberg has lots of ideas.
She thinks we should do three things: Protect, Restore and Fund.
PROTECT: What does Greta mean?
She says we should look after our environment. We can do this by recycling and reusing as much as we can.
We can save resources by switching off the lights and turning off things that use electricity when we are not using them.
We can turn off the tap when we are brushing our teeth to save water.
We can cut down on the amounts of fossil fuels we use by walking and cycling when we can instead of driving.
We can think carefully when we buy things.
Where was that product made? How far has it travelled to get to you? Can you buy something that was made or grown closer to where you live?
Do you really need a new one, or can your old one be fixed?
Does that food contain sustainable palm oil? Does it have an environmental mark on it like the Rainforest Alliance mark?
RESTORE: What does Greta mean?
We can help to repair our environment by planting trees. It might not be possible to plant a tree in our own gardens, but we can still help by supporting charities like the Woodland Trust or WWF who are working to plant one trillion trees by 2050.
FUND: What does Greta mean?
This is much more difficult for children to do - you are not old enough to vote! However, you can join in with campaigns to improve our environment so that the people in charge know that young people think it is important to look after our world. Hopefully this will mean that the people in charge choose to spend our country's money on projects that will look after our world rather than damage it.