• How Many ‘Wedges’ Does It Take to Solve the Climate ‘Problem’?

    Updated: 2013-01-11 15:41:44
    In An Inconvenient Truth (pp. 280-281), Al Gore enthused about a Science magazine study by Princeton economists Robert Socolow and Stephen Pacala. The study concluded that, “Humanity already possesses the fundamental scientific, technical, and industrial know how to solve the carbon and climate problems for the next half century.” Gore claimed the policies Socolow and Pacala recommend, “all of which [...]

  • Sea-level rise: Where we stand at the start of 2013 — Part 2

    Updated: 2013-01-11 08:48:56
    This is Part 2 of my thoughts on the state of sea-level research. Here is Part 1. Sea-level cycles? A topic that keeps coming up in the literature is the discussion on a (roughly) 60-year cycle in sea level data; a nice recent paper on this is . One thing I like about this paper [...]

  • Green hypocrisy as Al Gore Sells Out for Petro-dollars

    Updated: 2013-01-10 18:22:10
    Log in RSS news feed Email Log in RSS news feed Email MY NEW E-BOOK JUST PUBLISHED March 2012 Power Politics reveals that pretty much everything we have been told about energy just isn't true . Available now . Click to go to Amazon Kindle Store UK just 3.23 or Kindle Store US just 4.99 and other E-publishers soon . nbsp An excellent , readable book for anyone who wants to know the real implications of climate madness for energy policy . Steve Goreham author Climatism : Science , Common Sense and the 21 st Century's Hottest Topic a watershed book . Donald G . Nelson Direct click through to page from Continuum Amazon US Amazon UK and from Borders Waterstone and all usual . booksellers Subscribe Log in RSS news feed Email Navigation HOME BLOG ARTICLES GREAT MATERIALS to buy The Dark Side of

  • UK's New Year Shale Gas Resolution

    Updated: 2013-01-09 16:52:30
    The enormous ben The massive benefit of the UK developing its doemstic shale gas reserves is good news - if the government doesn't over-regulate and screw it up. For the full article at Energy Tribune go here.

  • Sea-level rise: Where we stand at the start of 2013

    Updated: 2013-01-09 09:12:27
    Progress has been made in recent years in understanding the observed past sea-level rise. As a result, process-based projections of future sea-level rise have become dramatically higher and are now closer to semi-empirical projections. However, process-based models still underestimate past sea-level rise, and they still project a smaller rise than semi-empirical models. Sea-level projections were [...]

  • How the President Can Address Climate Change Right Now

    Updated: 2013-01-04 15:04:24
    When Foreign Policy magazine decided to run a series on “10 problems Obama could solve right now,” they turned to EDF’s Gernot Wagner. His contribution: a list of ways the President can address climate change — without Congressional approval. Gernot acknowledges that: “President Obama isn’t going to halt the rise of the oceans in his second term.” [...]

  • On Sensitivity Part II: Constraining Cloud Feedback without Cloud Observations

    Updated: 2013-01-04 00:42:52
    Guest Commentary by Karen M. Shell, Oregon State University Link to Part I. Clouds are very pesky for climate scientists. Due to their high spatial and temporal variability, as well as the many processes involved in cloud droplet formation, clouds are difficult to model. Furthermore, clouds have competing effects on solar and terrestrial radiation. Increases [...]

  • On sensitivity: Part I

    Updated: 2013-01-03 16:20:59
    Climate sensitivity is a perennial topic here, so the multiple new papers and discussions around the issue, each with different perspectives, are worth discussing. Since this can be a complicated topic, I’ll focus in this post on the credible work being published. There’ll be a second part from Karen Shell, and in a follow-on post [...]

  • Unforced Variations: Jan 2013

    Updated: 2013-01-01 20:48:38
    A new year… so comments reflecting the past year in climate science, or looking forward to the next are particularly apropos.

  • What is signal and what is noise?

    Updated: 2012-12-29 14:27:27
    The recent warming has been more pronounced in the Arctic Eurasia than in many other regions on our planet, but argues that only one out of 109 temperature records from this region exhibits a significant warming trend. I think that his conclusions were based on misguided analyses. The analysis did not sufficiently distinguish between signal [...]

  • CO2 Emissions, Life Expectancy, Per Capita GDP: The Real Hockey Stick

    Updated: 2012-12-27 21:55:08
    That fossil fuels are bad for people and the planet is a cardinal tenet of both mainstream and radical environmentalism. Cato Institute scholar Indur Goklany offers a dramatically different assessment in Humanity Unbound: How Fossil Fuels Saved Humanity from Nature and Nature from Humanity. Global average life expectancy (the best single indicator of health) hardly changed through most of human [...]

  • A review of cosmic rays and climate: a cluttered story of little success

    Updated: 2012-12-25 07:59:25
    A number of blogs were excited after having leaked the second-order draft of IPCC document, which they interpreted as a “game-changing admission of enhanced solar forcing”. However, little evidence remains for a link between galactic cosmic rays (GCR) and variations in Earth’s cloudiness. recently provided an extensive review of the study of the GCR and [...]

  • The heat is on in West Antarctica

    Updated: 2012-12-23 18:09:32
    Eric Steig Regular followers of RealClimate will be aware of our publication in 2009 in Nature, showing that West Antarctica — the part of the Antarctic ice sheet that is currently contributing the most to sea level rise, and which has the potential to become unstable and contribute a lot more (3 meters!) to sea [...]

  • This Weekend on Capital Green Scene

    Updated: 2012-12-21 22:07:54
    Our guest will be Wes Gillingham,  a founder and program director for  the environmental group Catskills Mountainkeeper. He will discuss natural gas hydraulic fracturing, and other topics. Capital Green Scene airs at 11 a.m. Saturdays on 88.3-FM (The Saint-WVCR) from its studios on the Loudonville campus of Siena College. Co-blogger Bill Helmer and I share [...]

  • PTC: Costly Climate Policy Dud

    Updated: 2012-12-20 18:52:41
    The wind energy production tax credit (PTC) expires at the stroke of midnight, Dec. 31, unless Congress votes to renew the tax break. A one-year extension would add an estimated $12.1 billion to deficit spending over 10 years. A six-year extension, advocated by the wind industry, could add $50 billion. The fiscal cliff looms and the [...]

  • Online video lectures on climate change

    Updated: 2012-12-20 14:26:17
    For those who’d like to get the basics of climate change explained first-hand by a climate scientist, here are two video lectures. In the first, I show some of the basic data sets and findings about global warming, including some comments on historic land marks of our science. The second lecture deals with the impacts [...]

  • David Cameron Must Sack Energy Secretary Ed Davey - and soon

    Updated: 2012-12-19 10:02:56
    My latest article spelling out who "we're all in this together" apparently doesn't apply when it comes to imposing a raft of new green energy levies. For the full article go to Energy Tribune (US) or to The Commentator (UK).

  • *** UPDATED *** This Weekend on Capital Green Scene

    Updated: 2012-12-17 15:34:41
    The Lake George Park Commission has come up with a plan to protect the lake for the growing threat of invasive species that would require recreational boats that use the lake to be inspected and, if necessary cleaned. The mandatory inspection plan has wide support among the counties, municipalities, environmental groups, businesses and other stakeholders [...]

  • Improving the Tropical Cyclone Climate Record

    Updated: 2012-12-17 02:58:51
    Guest Commentary by Christopher Hennon (UNC Asheville) Get involved in a new citizen science project at CycloneCenter.org. The poor quality of the tropical cyclone (TC) data record provides severe constraints on the ability of climate scientists to: a) determine to what degree TCs have responded to shifts in climate, b) evaluate theories on how TCs [...]

  • Greenpeace-WWF Wind Claims Blown Away

    Updated: 2012-12-16 13:09:56
    Log in RSS news feed Email Log in RSS news feed Email MY NEW E-BOOK JUST PUBLISHED March 2012 Power Politics reveals that pretty much everything we have been told about energy just isn't true . Available now . Click to go to Amazon Kindle Store UK just 3.23 or Kindle Store US just 4.99 and other E-publishers soon . nbsp An excellent , readable book for anyone who wants to know the real implications of climate madness for energy policy . Steve Goreham author Climatism : Science , Common Sense and the 21 st Century's Hottest Topic a watershed book . Donald G . Nelson Direct click through to page from Continuum Amazon US Amazon UK and from Borders Waterstone and all usual . booksellers Subscribe Log in RSS news feed Email Navigation HOME BLOG ARTICLES GREAT MATERIALS to buy The Dark Side of

  • EPA Updates Standards to Reduce Levels of Deadly Soot Pollution in Our Air

    Updated: 2012-12-14 21:01:34
    America took a big step toward cleaner, healthier air today. Today, the Environmental Protection Agency (EPA) released its long-awaited updated standards for fine particulate matter. EDF was among the many health and environmental groups applauding the life-saving new standards. Fine particulate matter is often referred to as soot, although it actually comprises a broader array [...]

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