However, peers who scrutinized the carbon dioxide theory of global
warming pointed out some flaws in the research. Dr Jones subsequently
recanted the carbon dioxide theory of global warming, pointing to errors
made by his subordinates and assistants. Nevertheless, there has been
much evidence to suggest that the Earth recently underwent a period of
global warming. Researchers such as Piers Corbyn have suggested the
solar cycle theory of global warming, whereby thermal energy from the
sun fluctuates in long cyclical waves, with a wavelength that is
measured in decades.
A climate researcher from Seattle compared the climates of cities
located close to the 50th
parallel, cities that include Vancouver, Regina and Winnipeg plus
overseas locations such as London, Paris, Frankfurt and Kiev. While
mid-winter temperatures in Vancouver, London and Paris are comparatively
mild near the freezing point of water, mid-winter temperatures can drop
to –40ºC in Regina, Winnipeg and Kiev. Vancouver, London and Paris are
located near warm oceanic coasts where prevailing winds blow from the
ocean toward land.
The winds pick up heat from the seawater and carry that heat inland.
Water also has a very high heat capacity, that is, a cubic unit of water
holds some 3,300 times the amount of heat as the identical cubic unit of
air. During the summer, the North Atlantic and North Pacific absorb
massive amounts of solar thermal energy, much of which remains in the
water through most of the winter.
Also during the summer, the North Atlantic drift carries warmer water
into the Norwegian Sea and into the Barents Sea. During a cyclical
period of increased solar energy, the North Atlantic drift will move
slightly warmer water under the Arctic ice, where the insulating effect
of the ice cover will reduce heat loss. The slow buildup of heat along
with the immense thermal storage capacity of water would eventually
cause some melting of the Arctic ice and expose open water.
Prevailing winds will then collect much moisture from the open water
and carry that moisture over land, into northern Canada, northern Europe
and northern Russia. The result may be unusual weather conditions
including increased northern precipitation, such as last winter’s record
snowfalls across Europe. While such weather patterns may be attributed
to global warming, that global warming may also be the result of the
earth receiving slightly more thermal energy during a period of
increased cyclical solar activity.