The ten hottest years ever recorded all happened since 1998 and the hottest one of all was 2014.
declares that fluctuations in solar activity do not correlate with
the rapid increase in global temperatures over the last few decades.
A report from the Intergovernmental Panel on Climate Change (IPCC) in 2007, which was based on the work of some 2,500 scientists in more than 130
countries, concluded that humans have caused most if not all of the current global warming.
More specifically, the official scientific opinion on global warming is that it is occurring right now, and that it is more than 90% certain that human activities are causing it due to greenhouse gas emissions (according to the IPCC's Fourth Assessment Report in 2007).
Although the media will give the illusion that there is still a debate on climate change, 97-98% of climate scientists affirm
the tenets of anthropogenic global warming (this data originates from the Proceedings of the National Academy of Science which took into account 1,372 scientists). What is more, the study shows that the average expertise of
the 2-3% who deny man-made climate change was much below that of their colleagues, based on
both publication and citation rates.
Since climate change will affect the biosphere, every single ecosystem and every single species therein will be affected in one way or another.
As a matter of fact, more than a million species could face extinction.
Climate change will cripple economies worldwide by causing several billions of dollars in damages.
A positive feedback effect could make global warming uncontrollable
after a certain point (see feedback mechanisms).
The ocean conveyor belt could be altered which could then provoke a mini
ice-age in Western Europe. This is not only amongst the least known
facts on climate change, but also one which may seem to be paradoxical.
Temperatures have risen by 0.8 degrees Celsius (around 1.4 degrees Fahrenheit) since 1880, according to NASA's Goddard Institute for Space Studies.
In Alaska, western Canada, and eastern Russia, average temperatures have
risen at twice the global average, according to the multinational Arctic
Climate Impact Assessment report which was compiled between 2000 and 2004. Greenland and the Arctic are being even more affected.
In the Northern
Hemisphere, freezes begin a
week later and thaws come out a week earlier in spring.
Coral reefs, which are very sensitive to even small changes in water temperature, have been severely affected. In 1998, as much as 70% if coral reefs bleached in certain areas. Coral reefs are not just pretty; they play a vital role in the ocean's ecosystems. When they bleach, the entire marine food chain will be ultimately affected.
currently have the technology available to combat abrupt climate
change; the only thing missing is political will which is fortunately, a
Some reports indicate that every dollar that is invested in climate change mitigation could save up to 60 dollars
in damages. Although skeptics will say that climate change adaptation
will hurt the economy, the truth is that prevention will be far better
The Kyoto Protocol and the Copenhagen Accord were established in order to help combat the current planetary warming. Both treaties had over 100 participants. However, there are downsides to both and future treaties will be formed in order to address these issues.
In 2007, the Nobel Peace Prize was awarded to both Al Gore and the IPCC "for
their efforts to build up and disseminate greater knowledge about
man-made climate change, and to lay the foundations for the measures
that are needed to counteract such change."
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