| Selected Recent References; annotated 
        on Global Warming Urgency | tipping elements | sustainable energy path | carbon markets | ticking time-bomb | Isotopes | gridlock | European approach | Human impacts | Sciences More current articles. REDUCING ABUPT CLIMATE CHANGE RISK
 "Reducing Abrupt Climate Change Risk Using the Montreal Protocol and other regulatory actions to complement cuts in CO2 Emissions." Mario Molina, et. al. Proceedings of the National Academy of Sciences: PNAS, February 2009. Volume _, # _, pp. 3-9.  
        Current emissions of anthropogenic greenhouse gasses (GHGs) have already committed the planet to an increase in average surface temperatures by the end of the century that may be above the critical threshold for ‘‘tipping elements" of the climate system into abrupt change with potentially irreversible and unmanageable consequences. This would mean that the climate system is close to entering, if not already within the sone of "dangerous anthropogenic interference (DAI)." Scientific and policy literature refers to the need for "early," "urgent," "rapid," and "fast action" mitigation to help avoid DAI and abrupt climate changes" "The stated goal of international climate policy is to avoid "dangerous anthropogenic interference" (DAI) with the climate system." . . . . "Paleoclimate records include steady linear changes as well as abrupt nonlinear changes, where small increases in average surface temperature produced qualitatively different modes of operation of the climate system that were irreversible on a time scale of millennia." There are large uncertainties associated with tipping points, which are often associated with 'surprises' . . . .The transition time scales estimated for these tipping elements vary from as little as ten years for loss of summer sea ice, in the Arctic to 50 years for Amazon and other forests die-off, to 300 years at the low end for melting of the Greenland Ice sheet, and 300 years for the worst case scenario for the collapse of the west Antarctic Ice Sheet." "Tipping elements in the Earth’s climate system"Timothy M. Lenton, Hermann Held, Elmar Kriegler, Jim W. Hall, Wolfgang Lucht, Stefan Rahmstof, and Hans Joachim Schellnhuber. Proceedings of the National Academy of Sciences: PNAS, February 2008. Volume 105, # 6, pp. 1786-1793.
 
        The term ‘‘tipping point’’ commonly refers to a critical threshold at which a tiny perturbation can qualitatively alter the state or development of a system. Here we introduce the term ‘‘tipping element’’ to describe large-scale components of the Earth system that may pass a tipping point. We critically evaluate potential policy-relevant tipping elements in the climate system under anthropogenic [ human induced ] forcing, drawing on the pertinent literature and a recent international workshop to compile a short list, and we assess where their tipping points lie. An expert elicitation is used to help rank their sensitivity to global warming and the uncertainty about the underlying physical mechanisms. Then we explain how, in principle, early warning systems could be established to detect the proximity of some tipping points. Human activities may have the potential to push components of the Earth system past critical states into qualitatively different modes of operation, implying large-scale impacts on human and ecological systems. Examples that have received recent attention include the potential collapse of the Atlantic thermohaline circulation (THC) (1), dieback of the Amazon rainforest (2), and decay of the Greenland ice sheet (3). Urgency | tipping elements | sustainable energy path | carbon markets | ticking time-bomb | Isotopes | gridlock | European approach | Human impacts | Sciences 
 
 A Path to Sustainable Energy by 2030, Mark Z. Jacobsen 
        & Mark A. Delucci. Scientific American, November 2009, pp. 58-65.  
        "Wind. Water and solar technologies can provide 
          100 percent of the world's energy, eliminating all fossil fuels. Scientists 
          have been building to this moment for at least a decade, analyzing various 
          pieces of the challenge. Most recently a 2009 Stanford University study 
          ranked energy systems according to their impacts on global warming, pollution. 
          water supply, land use, wildlife and other concerns. The very best options 
          were wind. solar, geothermal, tidal and hydroelectric power all of which 
          are driven by wind, water or sunlight. The study also found that battery 
          electric vehicles recharged by the above options would largely eliminate 
          pollution from the transportation sector." 
 "Making Carbon Markets
        Work." David G. Victor and Danny Cullenward. Scientific America, Vol. 296: #6. February, 2007. pp. 70-77. 
        Limiting climate change without damaging the world economy
          depends on stronger and smarter market signals to regulate carbon dioxide. Five
          ways to limit carbon emissions are basic to any attempt to unrealistically
          create markets out of thin air and to avoid market players from gaming the
          system. "The challenge is immense. Traditional fossil fuel energy is so
          abundant and inexpensive that climate-friendly substitutes have little hope of
          acceptance without robust policy support."  Urgency | tipping elements | sustainable energy path | carbon markets | ticking time-bomb | Isotopes | gridlock | European approach | Human impacts | Sciences 
 "Defusing the Global Warming Time Bomb," James Hansen, Scientific American, March 2004, pp. 68-77. 
        "Global warming is real, and the consequences 
          are potentially disastrous. Nevertheless, practical actions, which would 
          also yield a cleaner, healthier atmosphere, could slow, and eventually 
          stop, the process.... through study of the earth's climate, which reveals 
          that small forces, maintained long enough, can cause climate change. And, 
          consistent with the historical evidence, 
          the earth has begun to warm in recent decades at a rate predicted by climate 
          models that take account of the atmospheric accumulation of human made 
          greenhouse gases." See 
            here: for more. 
 "Stable isotope ratio mass spectrometry in global climate research," Prosenjit Ghosh, Willi A. Brand, International Journal of Mass Spectrometry, 228 (2003)pp. 1-33. 
         "Atmospheric carbon dioxide CO2 provides a link between biological, physical and anthropogenic processes in ecosystems. Carbon and Oxygen are exchanged between the atmosphere, the oceans, the terrestrial biosphere and more slowly with sediments and sedimentary rocks. Present concern is mainly focused on carbon because of its anthropogenic contributions, which includes fossil fuel combustion, deforestation, agriculture, and cement production."  (p.2)  Urgency | tipping elements | sustainable energy path | carbon markets | ticking time-bomb | Isotopes | gridlock | European approach | Human impacts | Sciences 
 Breaking the Global-Warming Gridlock, Daniel Sarewitz 
        & Roger Pielke Jr. The Atlantic Monthly, (July, 2000), pp. 
        55 - 64. 
        Each new scientific finding only raises new questions 
          -- meaning it is time for a new approach: if we look at practical steps 
          to reduce our vulnerability to todays weather, solving the problem 
          of tomorrows climate would be manageable. Involving the Public in Climate and Energy Decisions, Bernd Kasemir, et. 
        al. Environment, (April, 2000), pp. 32-41. How 
        Europeans interpret evidence that increasing consumption is driving human-induced 
        global warming from CO2 emissions.
 The Human Impact on Climate, Karl & Trenberth, Scientific American, 
        281:6, (December, 1999), pp. 100 -105. How much of a disruption 
        do we really cause? Over the next 50 years we can broadly understand how 
        humans are affecting global and regional climate patterns and the long 
        residence time of greenhouse gas emissions require monitoring improvements 
        begin now.
 Case Grows For Climate Change, Bette Hileman, Chemical and Engineering News, (Volume 77, Number 32), August 9, 
        1999, pp. 16-23, [ISSN 0009-2347] New evidence leads to 
        increasing concern that human-induced global warming from CO2 emissions 
        is already here.
 
 Trouble in Paradise: the Impacts of Climate Change on Biodiversity and 
        Ecosystems in Florida, Adam Markham, (World Wildlife Fund Report) 
        January, 1999-2000.
 The Science of Climate Change: Global and US Perspectives, Wigley, 
        Tom M.L. (1999), Pew Center for Global Climate Change, Senior Scientist, 
        National Center for Atmospheric Research, pp. 3-5. Compares 
        evidence that increasing temperatures and CO2 emissions from human-induced 
        global warming are closely related.
 Reinventing the Energy System, Christopher Flavin & Seth Dunn, State 
        of the World: 1999, pp, 22-40. Investigation of the 
        means to diversify the fuel basis of industrial societies based on the 
        concern that price inelasticity of fossil fuels for transportation will 
        slow global development.
   Urgency | tipping elements | sustainable energy path | carbon markets | ticking time-bomb | Isotopes | gridlock | European approach | Human impacts | Sciences The Role of Science and Policy: The Climate Change Debate in the US, Eugene 
        B. Skolnikoff, Environment, (June, 1999), p. 16.
 Ecologist, (April, 1999), entire edition. a comprehensive review 
        of the science, impacts, consequences and political motivation for global 
        warming stalemate.
 Biomass Energy and Carbon Sinks David O. Hall, Environment, (January-February, 
        1999, p. 5.
 The End of Cheap Oil, Colin J. Campbell & Jean H. Laberrére, Scientific American, 278:3 (March, 1998), pp. 78-83.
 
        Forecasts 
          about the abundance of oil are warped by inconsistent definitions of reserves. 
          In truth, every year for the past two decades the industry has pumped 
          more oil than it has discovered, and the production will soon be unable 
          to keep up with rising demand. Global Climate Change, Reinhardt & Vietor, Business Management 
        and the Natural Environment: Cases & Text, (Cincinnati, Ohio: 
        ITP, 1996), pp. 4-44 - 4-75.
 
        A comparison of contrasting 
          evidence leads to increasingly inconclusive debate between two options: 
          the costs of slowing greenhouse gas emissions versus adapting to sea level 
          rise and other externalities. No single country could significantly 
          affect global levels of greenhouse gases through unilateral action. Radiative forcing of Climate Change, IPCC, Climate Change 1995: Science 
        of Climate Change, pp. 75- 131.
 
        Elaboration of the 
          physics behind atmospheric gas behavior and the uncertainties surrounding 
          oceanic and atmospheric consequences of a rapid rise of thermal insulating 
          gases. Urgency | tipping elements | sustainable energy path | carbon markets | ticking time-bomb | Isotopes | gridlock | European approach | Human impacts | Sciences 
        More current articles. President Carter's reference to Global Warming in the Nobel Peace Prize Lecture Spencer 
        Weart | Gale Christianson | James Hansen, 04 : Hansen 06 | Bill McKibben | Wigley Contemporary |