The recent slowdown in climate warming is due to natural oscillations in the climate, according to a team of climate scientists, who add that these oscillations represent variability internal to the climate system. They do not signal any slowdown in human-caused global warming.
The Atlantic Multidecadal Oscillation (AMO) describes how North Atlantic sea-surface temperatures tend to oscillate with a periodicity of about 50 to 70 years. The Pacific Decadal Oscillation (PDO) varies over a broader range of timescales. The researchers looked only at the portion of the PDO that was multidecadal -- what they term the Pacific multidecadal oscillation (PMO).
Everyone loves to talk about the weather, and this winter Mother Nature has served up a feast to chew on. Few parts of the US have been spared her wrath.
Severe drought and abnormally warm conditions continue in the west, with the first-ever rain-free January in San Francisco; bitter cold hangs tough over the upper Midwest and Northeast; and New England is being buried by a seemingly endless string of snowy nor’easters.
Yes, droughts, cold and snowstorms have happened before, but the persistence of this pattern over North America is starting to raise eyebrows. Is climate change at work here?
Attacks on institutions that keep records of global temperatures, such as NASA, the US National Oceanic and Atmospheric Administration, the UK Met Office, and Australia’s Bureau of Meteorology, continue to appear in the press.
Some of the coldest air of the 2014-2015 winter season is settling over the eastern two-thirds of the U.S., an Arctic air mass that brought wind chills from below zero to the single numbers from the Midwest to the Mid-Atlantic.
It is certainly cold on the surface, but infrared NASA satellite imagery revealed even colder temperatures in cloud tops associated with the air mass.
The folks in Boston might feel like they are having a run of bad weather now, but it's nothing like the intense hurricanes, fueled by warmer oceans, that frequently pounded the region during the first millennium, from the peak of the Roman Empire into the height of the Middle Ages, according to a new study.
The rate of global warming that had been predicted in the 1990s did not come to pass. In the 21st century, warming has been significantly slower than all the models had predicted, leading to claims that the models contained systematic errors.
Not so, according to a new analysis, it is just random variation. Jochem Marotzke, Director at the Max Planck Institute for Meteorology in Hamburg, and Piers M. Forster, a professor at the University of Leeds in the UK, did a statistical analysis and found that the models do not generally overestimate man-made climate change and so global warming is still highly likely to reach critical proportions by the end of the century if CO2 emissions are not reduced.
A new study finds that most climate models may have wiggles that undermine accuracy - but they are likely underestimating the degree of decade-to-decade variability occurring in mean surface temperatures as Earth's atmosphere warms.
The models also provide inconsistent explanations of why this variability occurs in the first place and such discrepancies undermine the models' reliability for projecting the short-term pace as well as the extent of future warming, the study's authors warn.
As such, we shouldn't over-interpret recent temperature trends, no matter what blizzard his New York City and leads to exploitation of climate science to generate media pageviews.
Wildfires send hot flames and smoke high into the air, including black carbon emissions associated with climate change and risk to human health. Unless the United States adapts sensible forest management policies, which means fewer instances of the Department of the Interior and environmental lobbyists conspiring to manipulate science reports
, carbon emissions from wildfires in the contiguous U.S. could increase by 50 percent by 2050 and double by 2100.
Researchers have determined that languages with a wide range of tone pitches are more prevalent in regions with high humidity levels while languages with simpler tone pitches are mainly found in drier regions.
They explain this by noting that the vocal folds require a humid environment to produce the right tone. That means climate and weather our voices too.
Credit: Don Davis
By Claire Belcher, University of Exeter and Rory Hadden, University of Edinburgh
The asteroid that wiped out the dinosaurs set off an intense heat wave that briefly boiled the Earth’s atmosphere – but it didn’t burn off all the plants.