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Death knell for human race
Highlights
Humans will be extinct in 100 years because the planet will be uninhabitable, according to Australian microbiologist Frank Fenner, one of the leaders of the effort to eradicate smallpox in the 1970s. Fenner blames overcrowding, denuded resources and climate change. Fenner’s prediction is not a sure bet, but he is correct that there is no way emissions reductions will be enough to save us from our trend toward doom. And there doesn’t seem to be any big global rush to reduce emissions, anyway.
Humans will be extinct in 100 years because the planet will be uninhabitable, according to Australian microbiologist Frank Fenner, one of the leaders of the effort to eradicate smallpox in the 1970s. Fenner blames overcrowding, denuded resources and climate change. Fenner’s prediction is not a sure bet, but he is correct that there is no way emissions reductions will be enough to save us from our trend toward doom. And there doesn’t seem to be any big global rush to reduce emissions, anyway.
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When the G-7 called for all countries to reduce carbon emissions to zero in the next 85 years, the scientific reaction was unanimous: That’s far too late. And no possible treaty that emerges from the current United Nations Framework Convention on Climate Change in Bonn, Germany, in preparation for November’s United Nations climate conference in Paris, will be sufficient. At this point, lowering emissions is just half the story the easy half. The harder half will be an aggressive effort to find the technologies needed to reverse the climate apocalypse that has already begun.
For years now, we have heard that we are at a tipping point. In 2007, Sir David King, former chief scientific advisor to the British government, said: “Avoiding dangerous climate change is impossible. The dangerous climate change is already here. The question is, can we avoid catastrophic climate change?” In the years since, emissions have risen, as have global temperatures. Only two conclusions can be drawn: Either these old warnings were alarmist, or we are already in far bigger trouble than the UN claims. Unfortunately, the latter seems to be the case.
Lowering emissions and moving to cleaner energy sources is a necessary step to prevent catastrophic temperature rises. The general target is to keep global temperatures from rising more than 2 degree Celsius . Higher increases such as the 5 degree Celsius increase currently projected by 2100 run the risk of widespread flooding, famine, drought, sea level rise, mass extinction and, worse, the potential of passing a tipping point (frequently set at 6 degree Celsius) that could render much of the planet uninhabitable and wipe out most species.
Even the 2 degree Celsius figure predicts more than a meter’s rise in sea levels by 2100, enough to displace millions. It is no wonder that the Pentagon calls climate change a serious “threat multiplier” and is considering its potential disruptive impact across all its planning.
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