What does being "carbon neutral" mean? A product, service, process or organisation is carbon neutral when it has zero net emissions of greenhouse gases: overall emissions of greenhouse gases are matched by CO2 removal by the green areas of the system considered. In most cases it...
What is global heating? Global heating is an increase in the mean annual temperature of the Earth due to human activities, not linked to natural cycles. The temperature varies in a given place in relation to many factors, such as weather, day/night, season, altitude, presence/absence of...
What is the greenhouse effect? A body heated by a heat source, like a saucepan on a stove, does not stay hot for long if the heat source is turned off. The heat disperses in the environment. Our planet is also heated where it is day...
What are greenhouse gases? Greenhouse gases are gases which when released to the atmosphere, block part of the heat of solar origin that Earth re-radiates into space. What gases promote the greenhouse effect? There are many greenhouse gases and their properties vary widely. They share a physicochemical structure...