We can probably stop global warming by the year 2030, but only if we start using more renewable energy like solar power. That's what UN climate experts say.
At the moment, we are still using too many fossil fuels like coal, gas and oil, and they cause a lot of air pollution.
In 2019, these fossil fuels released 59 billion tonnes of greenhouse gases into the atmosphere. This is causing the atmosphere to heat up.
But solar power and wind power are better choices because they are clean. They don't release greenhouse gases. Also, these methods are getting cheaper.
In the photo, a worker is standing on floating solar panels on a reservoir in Thailand. Could we do this in Hong Kong?
