This view displays a short summary for all articles related to global warming. If you like to refine the view, choose a category tag in the list below and press the Submit button to refresh the view. Click on a title in the list to read the full article.
There is no doubt any more: In order to mitigate global warming, the emission of greenhouse gases must be reduced, the sooner the better. This will then lead to a stabilization of the greenhouse gas concentration in the atmosphere - and in the very long term hopefully to a decrease of its concentration.The level at which the greenhouse gas concentration gets stabilized does determine the warming effect, i.e. the temperature increase.The following graph shows the relation between the greenhouse gas concentration (expressed as CO2-equivalents) and the resulting average global temperature increase on the surface.
This article tries to answer a question about the greenhouse effect: "Greenhouse gases prevent the infrared rays from leaving the Earth's atmosphere, but why do they not prevent additional solar radiation from entering the atmosphere?"
The key is the different wavelength (or different frequency) of solar light and infrared light. Let's have a look at the greenhouse effect (see also the graph about radion transmitted by atmosphere below):
The following graph shows the cumulative CO2 (carbon dioxide) emissions by country for the years 1900 until 2002. This is the sum of all CO2 emissions in the years 1900 until 2002 for each developed country. Data source was the World Resources Institute (WRI).
On the page link here, you can find the CO2 emissions by country and/or per capita by country .
It does make sense to look at the sum of all CO2 emissions because the lifetime of the greenhouse gases like CO2 in the atmosphere is between 50 and 200 years. The current global warming is an effect of all greenhouse gases put in the atmosphere during the last 100 years, global warming is not just caused by the greenhouse gases emitted this year or last year! This is also one of the reasons why immediate action is required to reduce the emission of greenhouse gases like carbon dioxide, because the effects of the greenhouse gases will last for about 100 years.
Run your own simulations of global warming with the attached spreadsheets!
Is prevention of global warming possible? Or is only mitigation of global warming possible? How fast do changes in the carbon dioxide emissions affect the average temperature increase? What are the effects of some proposed global warming solutions?
Before you can start calculating your personal carbon footprint, you must create a user account on http://timeforchange.org. Don't worry, your email address won't be given away or misused.
The report does not really reveal new information about the causes and effects of global warming. This report however confirms that mankind through the emission of greenhouse gases (in particular carbon dioxide, CO2) is the cause of global warming. Mitigation of global warming will only be possible with a drastic reduction of the world-wide emission of carbon dioxide (CO2). Carbon dioxide is produced when fossil fuels (coal, oil and gas) are burned.
The important thing about this report is the fact that its findings and conclusions have been accepted by hundreds of climate experts and governments world-wide. There is no doubt any more that urgent action is needed, nobody can ignore climate change any more and call global warming "an illusion of greens".
The issue with stopping or reducing global warming is about risk and managing risk: Science still does not know the exact mechanism by which smoking and its associated chemicals causes cancer. What we do know is that smoking is the biggest risk factor in developing lung cancer. The more you smoke, the more your risk of getting lung cancer. Not everyone who smokes gets lung cancer, and not everyone who gets lung cancer has smoked.
«Aiding oil, harming the climate» is a new report from the organisation "Oil Change International", which shows dramatically that the major investments still go into the oil, gas and coal sector instead of renewable energies. For more than 25 years, wealthy countries have been using aid and other foreign assistance to subsidize the expansion of the international oil industry, a practice known as “Oil Aid”. It is impossible to actively subsidize the expansion of the oil industry and effectively fight global warming at the same time.
Summary of Eurobarometer survey published on March 13, 2008. The report shows that Europeans are increasingly aware of the role played by the environment in their daily lives. More than 95% of European citizens feel that it is important to protect the environment. Some 80% also feel it influences their quality of life and consider that they have a role to play in protecting it. Climate change (global warming) tops the list of Europeans' environmental concerns, followed by pollution and man-made disasters.
A majority are also uneasy about the use of genetically-modified organisms (GMOs) in agriculture.
Observational evidence from all continents and most oceans shows that many natural systems are being affected by regional climate changes, particularly temperature increases. Warming of the climate system is undeniable, as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global average sea level.
The following is an excerpt and summary of the 4th report from the Intergovernmental panel of Climate change (IPCC) about the causes and effects of global warming.
This new report of IPCC will basically confirm the cause and effects of global warming, which have already been know for years. The evidence of earlier predictions is much increased and approaching certainty, however.