While the United States is now back at early 1990s levels of CO2 emissions, thanks to a switch to natural gas in the energy sector and a moribund economy, that doesn't apply to Asia. The middle class in China alone has a population that exceeds the entire USA and they all want, and are getting, cars and air conditioners and a better life and the emissions to go along with it. Globally, greenhouse gas emissions have continued to rise but warming, the telltale sign of climate change, has not.

Since 2000, global warming has tapered off and virtually no one in the climate science community predicted that could happen.

In 2013, stem cell therapy is touted as the future of medicine by proponents in Europe and Asia while scientists in America urge caution. Contrast that to a decade ago, when the concern was that American President George W. Bush was holding back progress because he limited federal funding for one form of stem cell research. In 2012, Governor Rick Perry of Texas not only believed in stem cell research, he declared that he wanted to make his state the home of American stem cell science.

Cryogenic Dark Matter Search (CDMS) collaborators are reporting what could be a weakly interacting massive particle (WIMP) signal at the 3-sigma level. In common parlance, that is 99.7 confidence - which sounds high.  But to physicists it really means they have 3 bumps in their data that could be a WIMP, which means it might be a hint of dark matter.

That sounds like a lot of qualifiers but particle physics is conservative that way. Data means what it means and not much more.  But certainly not less, and that is pretty important too.