Global climate change is the major environmental issue of current times. Evidence for global climate change is accumulating and there is a growing consensus that the most important cause is humankind’s interference in the natural cycle of greenhouse gases. (Greenhouse gases get their name from their ability to trap the sun’s heat in the earth’s atmosphere – the so-called greenhouse effect.)
CO2 emissions are recognized as the most important contributor to this problem. Since the turn of the 20th century the atmospheric concentration of greenhouse gases has been increasing rapidly, and the two main causes have been identified as:
- burning of fossil fuels and
- land-use change, particularly deforestation.
And now the world has discovered plants. People seem to think there is some magic in nature – that they can keep taking and things will grow back. We can buy “carbon offsets” to mitigate our guilt – trees planted to…
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