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The causes of climate change journals |
The fact that almost all the planets in our solar
system simultaneously experiencing climate change and volatile weather patterns.
This does he suggests that these climatic warming is a natural cycle resulting
from the changing nature of the sun? Al Gore can we explain this?
Current Science & Technology Center: global warming on Mars? A study of
the ice caps on Mars may show that the red planet is experiencing a warming
trend. If Mars and the Earth is undergoing global warming, then there is perhaps
a larger phenomenon that is taking place in the solar system causing changes in
their global climates. United Press International: NASA considered a monster
storm on Saturn NASA revealed that the Cassini spacecraft discovered a storm
like a hurricane in south pole of Saturn, with a diameter of almost 5000 miles,
or the equivalent of two-thirds the diameter of Earth.
Science Agogo: global warming detected on Triton There should not have a
lot of industrial pollution on the surface of the largest moon of Neptune,
however, things are warming. "At least since 1989, Triton has undergone a period
of global warming," the astronomer James Elliot, professor at Sciences
terrestrial, atmospheric and planetary Institute of Technology Massachusetts.
"Regarding the percentage is considered a very significant increase".
Associated Press: a study reveals that the sun is warming solar radiation
reaching the Earth are 0036 percent hotter until 1986, when the current solar
cycle began, reported a researcher in a study to be published this Friday in a
scientific journal. The discovery is based on an analysis of satellites that
measure the temperature of the sunlight.
London Telegraph: the truth about global warming - the sun is to blame for
global warming has finally been explained: the Earth is warming because the sun
produces more light than at any time in the last 1000 years, according to new
research.
The simple reality is that through the ages, the Earth has swung between
blithely climates hot, humid and stable in cold climates, dry and windy
conditions well before the first barrel of fossil fuel not burned. The changes
we are seeing now are just a simple walk in the park compared to the fighting
that our planet has been able to endure in the past.
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The sun, solely responsible for global warming |
Global warming in the Earth's climate that we
observe is not due to the rejection of greenhouse gases in the atmosphere, but
at a particularly high level and a prolonged boom during virtually the entire
last century , The intensity of energy transmitted by the Sun, says the
researcher.
Scientists have collected ice cores from wells dug deep (more than 3 km)
in Antarctica and Greenland. After studying these samples, they found that
considerable variation content of carbon dioxide in the atmosphere and global
warming occurred before the industrial era, the total absence of industrial
activity of man .
"It has been established, thus an increase, even important, the content of
carbon dioxide in the atmosphere has never preceded a warming climate on Earth,
on the contrary, such an increase has always followed a rise in temperature. In
other words, even a considerable accumulation of carbon dioxide in the
atmosphere does not, practically, an increase of the Earth's temperature,
"explains the researcher.
According Khabiboullo Abdoussamatov, it proves that increasing the
concentration of carbon dioxide that can be observed in the atmosphere is the
result mainly of raising the temperature of the Ocean World, due to increased
intensity of solar radiation.
"We know that raising the temperature of the ocean causes global release
into the atmosphere large amounts of carbon dioxide. Hence, the idea,
widespread, the crucial role of industrial activity of man in global warming, is
due to the fact that we took the consequence for the cause, "says the
researcher.
Khabiboullo Abdoussamatov also refutes the claim that carbon dioxide in
the atmosphere plays a role of "greenhouse glass, allowing the Earth to solar
radiation and does not refer in space some infrared rays irradiated by the
planet.
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The Earth's climate is approaching a "tipping point" |
The greenhouse gas, according to research conducted
by scientists from NASA and Columbia University Earth Institute, led the climate
situation around critical tipping points, meaning potentially dangerous
consequences for the planet. From a combination of climate models, satellite
data and paleoclimate, researchers conclude that the icecap of Antarctica West,
the ice cover of the Arctic, and regions providing fresh water sources and
habitat for the species were threatened by global warming continued.
The tipping points occur during climate change when the climate reaches a
state such that strong reactions from rising are activated by a simple moderate
additional warming. The study suggests that global warming of 0.6 ° C over the
past 30 years has been caused mainly by increasing the amount of greenhouse gas
and an additional change will generate moderate climate probably the
disintegration of the icecap of Antarctica West and ice cover of the Arctic.
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The disappearance of glaciers Hawaiian |
In the collective imagination, the only name is
synonymous with Hawaii tropical heat, beaches, tanned surfers, girls in bikinis
and shirts bariolées. However, there are nearly 20 millennia, a vast ice cap as
the city of Paris extended over the summits of this tropical island in the
Pacific. Researchers at the CNRS (1) come to reveal a portion of its history,
thus removing a key essential to understand how our planet's climate during the
glacial cycles of the Quaternary (2).
The history of this ice sheet shows that glaciers Hawaiian have reached
their maximum extension between 19 000 and 16 000 years and persisted until 15
000 years, about 3500 meters above sea level. To maintain the glaciers in the
tropical latitudes, calculations indicate that this time the atmosphere of the
summit of Hawaii was colder by about 7 º C and that these glacial conditions
persisted until 15 000 years. While the South Pacific will gradually warmed
since 18 000 years, the persistence late (with 3000 years offset) of these
glacial conditions in Hawaii suggests a connection air masses large-scale air
between the North Atlantic and Central Pacific .
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The global climate is warming the Earth for 100 years |
The direct measurements of temperature available
since 1900 show that the climate of the globe has warmed by 0.7 ° C in a
century. This warming is distributed unevenly on the Earth's surface because it
is mainly the high latitudes of the Northern Hemisphere who accuse, and it
manifests itself mainly by a rise in minimum temperatures locales.
The average sea level rose from 15 cm in 100 years, and precipitation
regimes are changing locally. The natural water cycle, which steam is the main
greenhouse gas (GHG) reacts thus warming.
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