Atmosphere of Earth development of animals. Today's atmosphere contains 21% oxygen, which is great enough for this rapid development of animals. "Air pollution" is the introduction into the atmosphere of chemicals, particulate matter or biological materials that cause harm or discomfort to organisms. Stratospheric ozone depletion is caused by air pollution, chiefly from chlorofluorocarbons and other ozone-depleting substances. The scientific consensus is that the anthropogenic greenhouse gases currently accumulating in the atmosphere are the main cause of global warming. On October 19, 2015 NASA started a website containing daily images of the full sunlit side of Earth on http://epic.gsfc.nasa.gov/. The images are taken
Space and Upper Atmosphere Research Commission Space and Upper Atmosphere Research Commission The Space and Upper Atmosphere Research Commission (SUPARCO) is an and bureaucratic space agency of the Government of Pakistan, responsible for the nation's public and civil space programme and for aeronautics and aerospace research. Its mission statement and objective is to conduct peaceful research in space technology and promote the technology for socio-economic uplift of the country. SUPARCO is a bilateral organisation of China National Space Administration as noted in their web page. Established in its modern form on 16 September 1961 by an executive order of President of Pakistan, it is headquartered in