When I was at drama school I wanted to change the world and thought I had some great wisdom to impart to people about humanity. Now that I'm older I know enough to realise that I know nothing at all.
The damage that climate change is causing and that will get worse if we fail to act goes beyond the hundreds of thousands of lives homes and businesses lost ecosystems destroyed species driven to extinction infrastructure smashed and people inconvenienced.
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Doing all we can to combat climate change comes with numerous benefits from reducing pollution and associated health care costs to strengthening and diversifying the economy by shifting to renewable energy among other measures.