2010-11-23 Daily Question

The main cause is likely greenhouse gases; the ones that are often mentioned include CO2, CH4, and N2O. In a broader sense, water vapor, ozone (O3), and chlorofluorocarbons (CFCs) also count as such gases. But if we trace their origin, these greenhouse gases that exceed the Earth’s environmental capacity are caused by human activities such as the extensive use of fossil fuels, industrial emissions, and vehicle exhaust. In terms of environmental protection, I believe it is necessary to reduce emissions as much as possible to a level that corresponds to nature’s ability to maintain its own balance plus humanity’s capacity to handle them, through methods such as using clean energy, reducing industrial and vehicle emissions, and upgrading and managing emission sources. :)

Greenhouse effect: Also known as the “greenhouse effect,” it is a common term for the atmospheric insulation effect. The atmosphere allows the sun’s short-wave radiation to reach the Earth’s surface, but the long-wave heat radiation emitted by the surface is absorbed by the atmosphere. This causes the temperature of the surface and the lower layers of the atmosphere to rise. Since its effect is similar to that of a greenhouse used for growing crops, it is called the greenhouse effect. If this effect were not present in the atmosphere, surface temperatures would drop by about 33 degrees or more. Conversely, if the greenhouse effect continues to intensify, global temperatures will inevitably keep rising year by year. The greenhouse effect is primarily caused by modern industrial societies burning excessive amounts of coal, oil, and natural gas, which leads to the emission of large quantities of exhaust gases; the combustion of these fuels releases significant amounts of carbon dioxide into the atmosphere. Since the Industrial Revolution, human activities have led to an increasing release into the atmosphere of greenhouse gases with high heat-absorbing capabilities such as carbon dioxide, thereby strengthening the greenhouse effect in the atmosphere and causing a series of serious problems including global warming.

The combustion of resources such as coal and oil releases large amounts of carbon dioxide emissions; environmental protection agencies should strengthen oversight to ensure that these emissions are treated and recycled to meet standards before being released.

Do cow farts harm the Earth? 　UN report: Cattle’s emissions are worse than those from cars, per a December 12 report by ETTV. As global warming becomes more severe, there are calls to reduce carbon dioxide emissions. According to a latest UN report, the 1.05 billion cattle worldwide are the main source of greenhouse gases, accounting for 18% of total carbon dioxide emissions. The rapid melting of the Arctic ice sheet is causing the global sea level to rise by 6 meters. In his environmental documentary \"An Inconvenient Truth,\" former U.S. Vice President Al Gore warned that global warming would lead to a crisis, with 40 million people in Shanghai and 60 million people in India being affected. A report by the United Nations Food and Agriculture Organization states that 1.05 billion cattle worldwide emit carbon dioxide, accounting for 18% of global emissions – a figure that exceeds that from sources such as cars and airplanes. The process of raising cattle, including burning fuel to produce fertilizers, grow fodder, and handle transportation, is responsible for 9% of carbon dioxide emissions. This 400-page report also examines other livestock, but cow farts and excrement contain over 100 types of pollutants. Ammonia accounts for two-thirds of the global total of such emissions, and it is precisely ammonia that causes acid rain; methane accounts for one-third of the global total, and this gas warms the Earth 20 times faster than carbon dioxide. Moreover, it takes 990 liters of water to produce 1 liter of milk from cows. The report states that one-fifth of the world’s grasslands have been desertified due to excessive livestock farming. Livestock farms and fertilizer waste increase algae levels in water sources, threatening the survival of other organisms in those waters as well as humans. Drugs such as antibiotics and hormones end up in water sources, causing pollution that reaches the oceans and destroys coral reefs. An area of 21,000 square kilometers in the Gulf of Mexico has become a \"dead zone\" as a result of waste from U.S. ranches being discharged into the region via the Mississippi River. 」 This conclusion states that, unless there are significant changes in the livestock farming practices mentioned above, the greenhouse effect caused by these animals will double by 2050.

The topic raised by the original poster is quite broad. However, from the perspective of environmental protection professionals, given China’s current economic and environmental standards, it should be possible to ensure that all sources of pollution from enterprises discharge pollutants within acceptable limits; I think the environmental conditions in China will **improve**, hehe! ! !