The carbon dioxide emissions (carbon footprint) caused by our personal behavior is driven to a large extent by the type and quality of our nourishment. The amount of greenhouse gases caused by the production of food is different from one food type to the other (see table below). Worst is meat and in particular beef.
A environmental friendly and climate change friendly nourishment is characterised as follows:
A number of people have asked about the implications of using plastic bags on the personal carbon footprint as well as on the environment in general. There are some comparisons between paper bags and plastic bags available which clearly show that it all depends on how many times these plastic or paper bags are being used.
Littering is probably the severest problem related to plastic bags. Nevertheless let's now have a look at the carbon dioxide (CO2) emissions for the production and incineration of plastic bags.
One of the few pros of nuclear power is the relatively low emission of carbon dioxide (CO2), one of the major causes of global warming. For this reason, it has been proposed as "the" method to mitigate the effects of climate change. However a recent life cycle analysis showed that nuclear power produces 4 to 10 times higher CO2 emissions per kWh electricity than renewable energies.
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):
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.