This is the US Dollar (USD) to South African Rand (ZAR) exchange rate history summary page, detailing 180 days of USD ZAR historical data from Thursday 16/04/2015 to Sunday 11/10/2015. Highest: 14.0681 ZAR on 28 Sep 2015. Average: 12.6667 ZAR over this period. Lowest: 11.7775 ZAR on 17 May 2015.
The term âcarbon footprintâ is used to denote the amount of carbon dioxide produced by your daily activities and use of material goods. Since CO2 is the most common of the greenhouse gases, you can determine your personal participation in Global Warming.
A carbon sink is anything that absorbs more carbon that it releases, whilst a carbon source is anything that releases more carbon than is absorb.Forests, soils, oceans and the atmosphere all store carbon and this carbon moves between them in a continuous cycle.This constant movement of carbon means that forests act as sources or sinks at different times. Not all stores of carbon are naturally cursed with such fluctuations however.In the context of climate change, the most important carbon stores are fossil fuel deposits as they have the unique benefit of being buried deep inside the earth, naturally separated from the carbon cycling in the atmosphere.ecause of this increase in atmospheric carbon, a lot of emphasis and hope has been put into the ability of trees, other plants and the soil to temporarily sink the carbon that fossil fuel burning releases into the atmosphere.