How can I help everyone understand that climate change is so important?

Do your best to gather as much information as you can about climate change and its impacts. The more educated you are on the topic, the better you will be able to help others understand why it's important. Sometimes it can help to talk to people about climate change on a scale they can understand. For example, if someone lives in a coastal community, you can explain that climate change is causing sea levels to rise, which has already impacted many coastal communities and the severity of this impact will only increase as time goes on.