UN:
Greenhouse Gas Inventory Data
What
are the main man-made greenhouse gases?
• Carbon dioxide (CO2). Accounts for around three-quarters
of the warming impact of current human greenhouse-gas emissions.
The key source of CO2 is the burning of fossil fuels such as coal,
oil and gas, though deforestation is also a very significant contributor.
• Methane (CH4). Accounts for around 14% of the impact
of current human greenhouse-gas emissions. Key sources include agriculture
(especially livestock and rice fields), fossil fuel extraction and
the decay of organic waste in landfill sites. Methane doesn't persist
in the atmosphere as long as CO2, though its warming effect is much
more potent for each gram of gas released.
• Nitrous oxide (N2O). Accounts for around 8% of the
warming impact of current human greenhouse-gas emissions. Key sources
include agriculture (especially nitrogen-fertilised soils and livestock
waste) and industrial processes. Nitrous oxide is even more potent
per gram than methane.
• Fluorinated gases ("F gases"). Account for around 1%
of the warming impact of current human greenhouse-gas emissions.
Key sources are industrial processes. F-gases are even more potent
per gram than nitrous oxide.
Human activity also changes the planet's temperature in other ways.
For example, vapour trails from planes, soot from fires and and
tropospheric ozone created indirectly by local pollution all tend
to increase warming. On the other hand, aerosol particles produced
by some vehicles and industrial processes tend to bounce sunlight
away from the earth, temporarily counteracting some of the warming
caused by man-made greenhouse gases.
How
long do greenhouse gases stay in the air?
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Between 65% and 80% of CO2 released into
the air dissolves into the ocean over a period of 20–200 years.
The rest is removed by slower processes that take up to several
hundreds of thousands of years, including chemical weathering and
rock formation. This means that once in the atmosphere, carbon dioxide
can continue to affect climate for thousands of years.
Methane, by contrast, is mostly removed from
the atmosphere by chemical reaction, persisting for about 12 years.
Nitrous oxide is destroyed in the stratosphere
and removed from the atmosphere more slowly than methane, persisting
for around 114 years.
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KLIMASCHUTZ-INDEX
2013
The
world map of CO2 emissions
Worldwide CO2 emissions in 2010:
30,600
Mt = 30.6 Gt
Which
nations are really responsible for climate change - interactive
map
A
visualisation of Europe's energy - interactive,
direct
How
Many Gigatons of Carbon Dioxide?
The Information is Beautiful guide to Doha Gigatons of CO2. Global
temperature rises. Carbon budgets. What does it all mean?
CO2
Megasheet
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All the air in the atmosphere (5,140 trillion tonnes) pictured as
a ball at sea-level density
CO2-Ausstoß
der verschiedenen Wirtschaftszweige in Deutschland in 2009
Kohlendioxid-Ausstoß in Deutschland:
839,5 Mio Tonnen CO2. (= - 8% im Vergleich
zu 1999).
Während diese Summe den direkt in Deutschland entstandenen Kohlendioxid-Ausstoß
angibt, kommen noch
+
9,9% importiertes CO2 durch die importierten und hierzulande
verbrauchten Güter zusätzlich hinzu.
Deutschlands
Treibhausgas-Ausstoß steigt,
25.02.2013
Treibhausgas-Ausstoß ist im vergangenen Jahr gestiegen - trotz
des starken Ausbaus erneuerbarer Energien
Der Ausstoß von Kohlendioxid und anderen Gasen stieg im Vergleich
zum Vorjahr um 1,6 Prozent.
Insgesamt entsprach der Treibhausgas-Ausstoß demnach 931
Millionen Tonnen Kohlendioxid, 14 Millionen Tonnen mehr als
2011.
Fossil
fuel subsidies: a tour of the data
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AG
Energiebilanzen
Der durchschnittliche CO2-Ausstoß pro Kopf in Deutschland beträgt
rund 11,7
Tonnen jährlich.
CO2
Rechner