Quite simply, to combat climate change / global warming.
This is cause by carbon dioxide CO² and other polluting gases. Gases trap heat around our planet like the glass on a green house. These gases last for many years and as they build up, the planets temperature rises. Green house gases are released by burning fossil fuels such as coal, gas and oil and by cutting down forests. Our western industrialised countries produce vast amounts of CO² by burning fossil fuels for the production of electricity.
Some extreme events such as droughts, floods, heat waves, avalanches and windstorms are projected to increase in frequency and/or severity.
The damage, hardship and death caused is also expected to increase with global warming. The impacts are expected to fall disproportionately on the poorer regions.
If you are still not convinced of the need to change our way of life, how about the disappearance of a few things closer to home. Such as, our native bluebell woods, Trees like the Birch and Cherry tree and even peas, pears and broad beans. Climate change is also affecting our North Sea Cod which could mean goodbye to our fish and chips!
