region and its surrounding areas an indication of how urgent the problem is retrofitted devices like joxer shield however are only one part of the solution to meet the target of the national clean air program which is reducing particulate matter levels by 30 percent by 2024 daily needs many many more innovations. carbon dioxide is the 4th most abundant gas in the earth. atmosphere now if this concentration begins to increase that's when things start to get the why and how does this happen let's find out. the air we breathe is invisible but there are ways of detecting its precise composition. there is composed almost entirely of nitrogen and oxygen. carbon dioxide makes up a fraction of one percent but it's a fraction that's growing and that's a problem c o 2 is among the primary causes of the greenhouse effect are such a natural process that warms the earth's surface. after sunlight passes through the earth's atmosphere most of the rays are reflected back up. some of them reflected back down again by sunlight reflecting particles in the atmosphere but as pollution increases so does the amo