The Earth we think we have is ending. The next few decades will see global and regional ecosystems, the varied richness of wild nature, swept away by a tidal wave of environmental change that we cannot stop or avert. The world of our children will be poorer, less diverse and full of weedy, invasive, species that thrive amongst the degradation we cause. There will be feral cats but there will be no Tasmanian devils.
But this is not news. In 1997, the journal Science devoted an issue to what they called ‘human-dominated ecosystems’. There is nowhere on Earth that we have not degraded, be it by pollution, the chainsaw, or fishing net. The most recent satellite imagery reveals that more than a third of the Earth’s surface has been converted to animal pasture or cropland. The oceans are being depleted and degraded at an ever faster rate with current research indicating a global fisheries collapse within the next forty years. On top of that the amount of carbon dioxide in the air right now means that the oceans will acidify for the next few centuries, greatly changing the entire ocean environment. The Great Barrier Reef will disappear and this cannot be stopped because the carbon is in the air now. You will watch it on your lounge room TV.
From all points of the globe, research is coming back that paints the same picture and it is a grim one. The Millennium Ecosystem Assessment, which collated and synthesised much of this research, is as important a document as the global warming reports issued by the IPCC. Yet it remains largely ignored. This is simply because it documents and discusses the damage we are doing to the environment that sustains us, the environment that we profit from, while the IPCC reports document changes that threaten us and our consumer lifestyle. One discusses the damage we do, which our culture largely ignores in the rush for profit and lifestyle, and says we must stop. This plea is carried on by a very few who are generally mocked and reviled as ‘greenies’ because they are crying out ‘Stop the destruction!’. The other is paid far more attention because it threatens our profit and lifestyle, even when the only way to minimise that threat is to make significant changes to that lifestyle – something we are not willing to do, if it were even possible.
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http://tasmaniantimes.com/index.php?/weblog/article/defending-the-wild/