Human Activities Increase Greenhouse Gases

Each greenhouse gas absorbs a different amount of heat. Greenhouse gases make visible light and ultraviolet rays of the sun unaffected by the atmosphere of the earth and can not reach the surface of the earth. When the sun illuminates the surface of the earth it is reflected to the atmosphere as heat, which absorbs heat and warms the earth. In the absence of greenhouse gases, the average surface temperature of the earth is 33 ° C lower than the current average temperature (14 ° C). Therefore, the "greenhouse effect" refers to the natural phenomenon of keeping the earth within the temperature range that makes life prosper.

Global warming is a disease caused by greenhouse gases and human activities. Increases in greenhouse gas concentrations caused by deforestation and fossil fuel burning and other activities are responsible for warming the Earth 's atmosphere and ocean. As a result, global warming had a serious effect on abnormal weather, species extinction and sea level rise. - How outsourcing affects US citizens, it not only makes our Americans unemployed, but also hurts our American economy. Outsourcing means that companies like Apple transfer work to countries like China and factory workers assemble products at a lower price. Yes, this will lower the price of the product, but we must consider how much it will get from US citizens.

In the past 150 years, greenhouse gas production activities such as industry, agriculture and transportation have increased significantly. These anthropogenic activities raise the levels of our atmospheric greenhouse gases and warm the earth at an unprecedented rate. Recent global warming can only be explained by human influence. We learned this from many ice score studies. As the snow falls, the snow grabs a small bubble and is compressed to ice. Over the years, more and more layers of ice have been accumulated. Drill the ice sheets in Antarctica and Greenland and record the time change of the atmosphere

There is no doubt that the accumulation of atmospheric greenhouse gases is mainly the result of human activity. Human activities enhance the natural greenhouse effect of the earth by increasing the level of atmospheric greenhouse gases. Since global warming has occurred since the industrial era, it is not easy to understand the degree of accumulation of greenhouse gases caused by humans. This is because other factors including nature and human factors will affect the temperature of our planet. Scientifically understand these other factors - most notably natural climate change, cooling effect of atmospheric particles (sulfate etc.), solar energy change, and cooling effect of contaminated aerosol - are still incomplete