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Abrupt changes

The Beetles: 6,000 Miles of Climate Change — Long Version

By Abrupt changes, Drought, forest health, Forest Mortality, Impacts, pine beetle, Shifting Ecology, Vegetation Response

This is the original long version with much more detail and all of the destinations and forest health descriptions along the 6,000 mile route. The abbreviated  2,000 word version was published on Truthout on February 16, 2016 is here. We were awash for 19 days in a tumultuous sea of mountains and forests, drifting a course through the heart…

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More on the Shutdown of the Gulf Stream

By Abrupt changes, Gulf Stream, ice sheet, ice sheets, Impacts, Oceans

Dansgaard Oeschger climate variability, more easily remembered as abrupt climate change, has been known from across the world through numerous lines of investigation since the early 1990s. This research greatly increases the robustness of the theory that a freshwater cap in the far North Atlantic from melting ice plays a significant role in abrupt change….

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A Generation of Delay: Climate Policy Is 20 Years Behind

By Abrupt changes, aerosols, alternatives, Climate Policy, CO2 Removal and Sequestration, Deniers and Delayers, in-depth and Popular Press, Negative emissions, Psycho, Solutions

First Published on Truthout, December 4, 2015 The perceived debate on climate change has discredited traditional climate science communications to such an extent that we are just now implementing policies developed during the Kyoto Protocol era that began in 1992. New climate science knowledge is simply not making it out of academia and into public…

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There All Along: “Exceptional” Slowdown of the Gulf Stream From Greenland Melt

By Abrupt changes, Glaciers, Gulf Stream, Oceans, Truthout.org

First Published on Truthout, April 13, 2015. The Gulf Stream plays an immensely important role in moderating the climate of eastern North America and Europe. Moreover, Greenland melt impacts ocean current processes in the North Atlantic. For years, contradictory research has alternately said the Gulf Stream was slowing and that it was not slowing. The…

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Climate Change 2014: What Do We Do Now?

By Abrupt changes, aerosols, alternatives, Climate Policy, climate pollutants short-lived, CO2 Removal and Sequestration, Emissions, Emissions Scenarios, Negative emissions, Solutions, Truthout.org

First published on Truthout, December 26, 2014. As we move into 2015, the latest climate science continues to diverge from policy. New science tells us that, because of short-lived climate pollutants, current policies dealing with carbon dioxide pollution alone will likely produce more warming than doing nothing at all. Complete Article

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With This Decade’s Climate Policy, Expect More Warming Than if Nothing Was Done at All, by Bruce Melton

By Abrupt changes, Climate Policy, climate pollutants short-lived, CO2 Removal and Sequestration, Emissions, Emissions Scenarios, in-depth and Popular Press, Methane, Temperature, Truthout.org

First Published on Truthout, August 27, 2014 (link) The fundamental climate change policy question today is not how much we should reduce carbon dioxide emissions by when, but what will currently proposed carbon dioxide emissions reductions do to our climate in the near-term? In addition, what are the ramifications of short-lived climate pollutants that are…

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Optimal Path for Avoiding Dangerous Change and Short-lived Greenhouse Gases

By Abrupt changes, Methane, Uncategorized

Methane (and natural gas), and black carbon (soot) are short-lived greenhouse gases relative to carbon dioxide, N20 (nitrous oxide) and CFC (chlorofluorocarbons). Limiting these short-lived greenhouse gases have obvious benefits in reducing warming. Focusing emissions reductions on these gasses also gives the benefit of delaying warming in the short-term, but really only in a world…

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Welcome to Climate Change Texas Part “Extra”: The Worst-Case Scenario is Happening

By Abrupt changes, Climate Catastrophes, Deniers and Delayers, Extreme Weather, Impacts, in-depth and Popular Press, Temperature

                (This article is an expansion of and provides technical backup for Bruce Melton’s three-part series, “Welcome to Climate Change in Texas,” published in December 2011 and January 2012 on The Rag Blog.) Read More — Extra:  Welcome to Climate Change Texas: The Worst-Case Scenario is Happening (expansion and backup) Part…

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Welcome to Climate Change Texas Part 1: What Can Be Done About Climate Change in Texas?

By Abrupt changes, Agriculture, alternatives, Climate Catastrophes, Deniers and Delayers, Drought, forest health, Forest Mortality, Impacts, in-depth and Popular Press, rainfall, Solutions

As I have been saying in the first two installments of this series, climate change is already much more extreme than most scientists have been predicting. This is mainly because the majority of predictions are based on the “most likely” emissions scenario and because we have not reduced our emissions like climate scientists told us…

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Welcome to Climate Change Texas Part 2: Drought and wildfires

By Abrupt changes, Drought, Extreme Weather, in-depth and Popular Press, rainfall

AUSTIN — If this is not climate change, then this is exactly what climate change will be in as little as a decade. What has been happening in Texas, with these unprecedented (in time frames that matter) droughts and wildfires, is exactly what the climate scientists have been warning us about for over 20 years….

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Climate Change and Global Economic Dysfunction

By Abrupt changes, alternatives, Arctic Sea Ice, Climate Policy, forest health, Forest Mortality, in-depth and Popular Press, Sea Level Rise, Solutions

Do you realize that ocean primary productivity has declined 40% since 1950? Or that, this year’s coral bleaching was worse than during the super El Nino of ’98? Or that, the Arctic was declared functionally ice free last summer for the first time in 14 million years? Read More — First published on the Rag…

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US Geological Survey Report – U.S. Climate Change Science Program. Thresholds of Climate Change in Ecosystems

By Abrupt changes

(170 pages) Ecological thresholds occur when external factors, positive feedbacks, or nonlinear instabilities in a system cause changes to propagate in a domino-like fashion that is potentially irreversible.  Atmospheric carbon dioxide has reached levels unprecedented in possibly the last 24 million years. CO2 concentrations have risen by 34%, mostly in the last several decades. Global…

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US Geological Survey Report – U.S. Climate Change Science Program. Thresholds of Climate Change in Ecosystems

By Abrupt changes, Impacts, Shifting Ecology

(170 pages) Ecological thresholds occur when external factors, positive feedbacks, or nonlinear instabilities in a system cause changes to propagate in a domino-like fashion that is potentially irreversible.  Atmospheric carbon dioxide has reached levels unprecedented in possibly the last 24 million years. CO2 concentrations have risen by 34%, mostly in the last several decades. Global…

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