President Obama Keeps Repeating Climate Falsehoods By Dr. Tim Ball October 5, 2009 Here’s a plot of US landfall hurricanes for 154 years and a plot of severe tornadoes for 57 years.
Figure 2: US Hurricanes 1851-2005
Source: National Oceanographic and Atmospheric Administration.
There’s no increase in either plot and there won’t be any if warming occurs.
Warming theory says polar air will warm more than tropical air thus reducing
temperature contrast, the main driving force of severe weather.
Figure 3: Severe Tornadoes 1950-2007
Source: National Oceanographic and Atmospheric Administration.
Most major storms and severe weather,
including tornadoes, occur in the middle latitudes between approximately 30 and
65 degrees of latitude. ...
passed. It’s the cold air that dictates
what happens because it is more dense and heavier than the warm air. It pushes
the warm air out of the way or allows the warm air to move in behind.
Overall,
Earth’s atmosphere is in two air masses with a dome of cold polar air over each
pole and over-running warm subtropical air separated by the Polar Front
In the US, the most extreme
temperature contrast across the Front occurs when cold air pushes well south and
meets with warm moist air coming off the Gulf of Mexico. This pattern creates a
general zone running from the Texas panhandle northeast through the Ohio valley
and in to southwest Ontario. This zone is known as Tornado Alley. It’s a wide
zone that varies with the season and conditions. ...
The loss of life is tragic, but is a sad
part of living in the tornado zone. Natural risks exist in every part of the
world. People weigh the risks against the potential for obtaining a living or a
lifestyle. In Bangladesh, millions risk cyclones and flooding to farm the rich
soils. In Indonesia they live on the side of active volcanoes because of the
fertile soils. People ignore the risk of earthquakes for the lifestyle
in California.
Link
Global and Northern Hemisphere Tropical Cyclone Activity [still] lowest in 30-years Tropical cyclone (TC) activity worldwide has completely and utterly collapsed during the past 2 to 3 years with TC energy levels sinking to levels not seen since the late 1970s. This should not be a surprise to scientists since the natural variability in climate dominates any detectable or perceived global warming impact when it comes to measuring yearly integrated tropical cyclone activity. With the continuation (persistence) of colder Pacific tropical sea-surface temperatures associated with the effects of La Nina, the upcoming 2009 Atlantic hurricane season should be above average, as we saw in 2008. Nevertheless, since the Atlantic only makes up 10-15% of overall global TC activity each year (climatological average during the past 30 years), continued Northern Hemispheric and global TC inactivity as a whole likely will continue.
See
Climate Audit guest blog posting
for the DrudgeReport linked story
March 15, 2009
