According to a widespread scientific consensus, there has been a rise in global average temperatures that have coincided with industrialisation. As such, it is a human-made problem that has come about because of the activities of man rather than of natural shifts in the climate – something which is also known to occur. A lot of climate change has happened in recent years, largely due to the cumulative effect of carbon dioxide – and other so-called greenhouse gases – which have been released into the atmosphere. Although some heat energy dissipates into space, such gases can trap much of it, rather like a greenhouse, leading to higher than expected average temperatures and other climatic changes, such as increased extreme wind ferocity. Many campaigners now believe there is a climate emergency which requires drastic action in order to overcome its worst effects on the environment.
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