The ozone layer in the Earth's atmosphere protects us from the harmful ultraviolet rays from the Sun, but it is at risk of depletion. This article explains the problem and how you can help to protect the ozone layer.

Climate change is the defining challenge of our time, and it affects each and every one of us. Here you can learn about what climate change is, the ways in which it is occurring in Hong Kong, what the Government is doing to combat the problem, and how you can help too.