Climate change. Let’s briefly look at what it is, what causes it, and what the current status of actions to reduce or prevent it are.2
The planet’s surface (land and water) and air temperatures are increasing. Although the temperature increases may seem minor (a few degrees over a number of years) it is important to consider that the Earth is a complex nonlinear dynamic system and so minor variations in parameters can cause significant (and nonlinear) effects on the system. As well as the mean temperature increases, there is also a trend toward increased variance – so extreme temperature and climate conditions are being experienced as well.3
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