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.
Carbon footprint is a measure of the impact our activities have on  the environment, and in particular climate change. It relates to  the amount of greenhouse gases produced â¦ in our day-to-day lives  through burning fossil fuels for electricity, heating and  transportation etc.arbon footprints are rated according to the total greenho â¦ use gas cost during the lifetime of the object. Different greenhouse gasses have different effects, so the solar footprint has to be rated on a basis that is uniform. The basis is carbon dioxide, or CO2.