in late 2019 the supreme court mandated and mammon pollution prevention and control authority directed a ban of diesel generators during the winter months in the national capital 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's atmosphere now if this concentration begins to increase that's when things start to get as 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. carbon dioxide makes of 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