John Holdren – We are already beyond dangerous
Such inaction is impossible to justify today. Leading climate scientist John Holdren on 3 November 2006:
“Climate change is coming at us faster, with larger impacts and bigger risks, than even most climate scientists expected as recently as a few years ago. The stated goal of the UNFCCC – avoiding dangerous anthropogenic interference in the climate – is in fact unattainable, because today we are already experiencing dangerous anthropogenic interference. The real question now is whether we can still avoid catastrophic anthro-pogenic interference in climate. There is no guarantee that catastrophe can be avoided even we start taking serious evasive action immediately; But it’s increasingly clear that the current level of anthropogenic interference is dangerous: Significant impacts in terms of floods, droughts, wildfires, species, melting ice already evident at ~0.8°C above pre-industrial Tavg. Current GHG concentrations commit us to 0.6°C more.” 
Furthermore, James Hansen has been pressing for a global climate state of emergency since 2008.
Paleoclimate scientist Andrew Glikson interviewed by Australian Broadcasting Corporation (ABC) Radio Australia, 2009, in response to the question “what has to be done?”stated: “extremely rapid reduction in emissions … I would say, 80 percent within the next ten years or so … people like me have been looking at the evidence about this on a day to day basis and we have been doing it for years, and to look in to the abyss at this length is a daunting task.”
“My view is that the climate has already crossed at least one tipping point, about 1975-1976, and is now at a runaway state, implying that only emergency measures have a chance of making a difference…” “The costs of all of the above would require diversion of the trillions of dollars from global military expenditures to environmental mitigation.” – 2010, Andrew Glikson
Jeremy Rifkin – Can we prevent the end of the world in 50 years? | Part 1
Jeremy Rifkin – Can we prevent the end of the world in 50 years? | Part 2
Jeremy Rifkin – Can we prevent the end of the world in 50 years? | Part 3
Creative commons photo courtesy of Living Water International via Flickr.