“[T]he impact that emissions reduction efforts in the U.S. will have on global emissions totals–and by extension, global climate–is quickly diminishing.”

The just-released numbers for last year’s carbon dioxide emissions (not including land-use changes) show why forcing large cuts in carbon dioxide (CO2) emissions is not very high on the priority list of the U.S. powers-that-be (including voters).

In 2010, the total global CO2 emissions were the highest on record, ~9.1 PgC (33,400 million metric tons). The U.S. contribution was ~1.50PgC, about 16% of the global total—percentage-wise the lowest on record (since 1959) and falling rapidly. (more…)

“The short-term rate of global sea level rise has decreased by about 25% since the release of the AR4—and a new paper shows that some 15% of the observed rise comes not from global warming, but instead from global dewatering…. [R]ather than raising its projections of sea level rise, perhaps the IPCC ought to consider lowering them once again.”

The Intergovernmental Panel on Climate Change (IPCC) is under pressure to revisit its projections of the expected amount of sea level rise by the year 2100. Many rather influential types are pushing for the IPCC to dramatically increase its central estimate by some 2-3 times above the value given in the IPCC’s Fourth Assessment Report (AR4).

Not so fast!

Nature speaks with a contrary voice, political agendas aside. The short-term rate of global sea level rise has decreased by about 25% since the release of the AR4—and a new paper shows that some 15% of the observed rise comes not from global warming, but instead from global dewatering. (more…)

In my last post, I suggested that the externalities from coal-fired electricity generation were probably not as negative as was being touted in a recent report by Paul Epstein and colleagues from the Center for Health and the Global Environment. As further support for my contention, I submit the contents of a new book by copious carbon dioxide researchers Drs. Sherwood and Craig Idso titled “The Many Benefits of Atmospheric CO2 Enrichment: How humanity and the rest of the biosphere will prosper from this amazing trace gas that so many have wrongfully characterized as a dangerous air pollutant!” (more…)

A new study has concluded that shifting climate is leading to shifting vegetation patterns across the globe.

My response to this announcement was “Terrific! The biosphere was responding the way it should to changing conditions.”

To my surprise, this enthusiasm wasn’t shared by the study’s authors. In fact, lead author Patrick Gonzalez seemed downright glum:

“Globally, vegetation shifts are disrupting ecosystems, reducing habitat for endangered species, and altering the forests that supply water and other services to many people.”

A very negative spin on what should be cause for celebration. (more…)

“The global temperature “savings” of the Kerry-Lieberman bill is astoundingly small—0.043°C (0.077°F) by 2050 and 0.111°C (0.200°F) by 2100. In other words, by century’s end, reducing U.S. greenhouse gas emissions by 83% will only result in global temperatures being one-fifth of one degree Fahrenheit less than they would otherwise be. That is a scientifically meaningless reduction.”

Senators John Kerry and Joseph Lieberman have just unveiled their latest/greatest attempt to reign in U. S. greenhouse gas emissions. Their one time collaborator Lindsey Graham indicated that he did not consider the bill a climate bill because “[t]here is no bipartisan support for a cap-and-trade bill based on global warming.” But make no mistake. This is a climate bill at heart, and thus the Kerry-Lieberman bill sections labeled “Title II. Global Warming Pollution Reduction.”

So apparently someone thinks the bill will have an impact on global warming. But those someones are wrong. The bill will have no meaningful impact of the future course of global warming.

That is, unless the rest of the world—primarily the developing nations—decide to play along. (more…)

The findings of the Intergovernmental Panel on Climate Change (IPCC) are often held up as representing “the consensus of scientists”—a pretty grandiose and presumptuous claim. And one that in recent days, weeks, and months, has been unraveling. So too, therefore, must all of the secondary assessments that are based on the IPCC findings—the most notable of which is the EPA’s Endangerment Finding—that “greenhouse gases taken in combination endanger both the public health and the public welfare of current and future generations.”

Recent events have shown, rather embarrassingly, that the IPCC is not “the” consensus of scientists, but rather the opinions of a few scientists (in some cases as few as one) in various subject areas whose consensus among themselves is then kludged together by the designers of the IPCC final product who a priori know what they want the ultimate outcome to be (that greenhouse gases are leading to dangerous climate change and need to be restricted). So clearly you can see why the EPA (who has a similar objective) would decide to rely on the IPCC findings rather than have to conduct an independent assessment of the science with the same predetermined outcome. Why go through the extra effort to arrive at the same conclusion?

The EPA’s official justification for its reliance on the IPCC’s findings is that it has reviewed the IPCC’s “procedures” and found them to be exemplary. (more…)