Global warming as a result of the anthropogenic greenhouse effect. Global warming is massively altering ecosystems, making the consequences of climate change serious for humans too. Rising air and sea temperatures are gradually reducing the entire global snow and ice mass. Glaciers and polar ice caps are melting.
The largest source of greenhouse gas emissions from human activities in the United States is from burning fossil fuels for electricity, heat, and transportation.
Anthropogenic emissions of greenhouse gases have perturbed the Earth's energy budget, changed Earth's climate, and are projected to result in considerable climatic change over the next decades to millennia.
The models indicate Earth's surface will get warmer. This will have serious knock-on effects, such as changes in global rainfall, ocean circulation and extreme weather events, and an increase in sea level. These changes will have further consequences for global agriculture, biodiversity and human health.
The flooding of coastal cities, the desertification of fertile areas, the melting of glacial masses and the proliferation of devastating hurricanes are just some of the main consequences.
A greenhouse gas is any gaseous compound in the atmosphere that is capable of absorbing infrared radiation, thereby trapping and holding heat in the atmosphere. By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming.
Anthropogenic emissions Emissions of greenhouse gases (GHGs), precursors of GHGs and aerosols caused by human activities. These activities include the burning of fossil fuels, deforestation, land use and land-use changes (LULUC), livestock production, fertilisation, waste management and industrial processes.
The anthropogenic activities include mining, release of industrial waste, smelting of As ore, incineration of fossil fuel, particularly coal, utilization of As-loaded water for irrigation, and As-based pesticides, herbicides, and fertilizers (Karimi et al., 2009).
Carbon dioxide is widely reported as the most important anthropogenic greenhouse gas because it currently accounts for the greatest portion of the warming associated with human activities.
Increases in greenhouse gas emission leads to increased heat trapping. This trapped heat is causing an increase in Earth's temperature which is have dangerous knock on effects such as melting ice-caps which lead to rising sea levels and flooding.
Greenhouse Effect is the process of heating of the surface of Earth till the troposphere. It happens because of higher concentration of carbon dioxide, water vapour, methane and other gases. Sunlight heats up Earth's surface, and subsequently, the energy is reflected back to space in the form of infrared radiation.
Carbon dioxide and water vapour absorb infrared radiations coming to the earth and partly reflect it back to the earth's surface. Due to this, the surface of the earth gets heated up. This phenomenon is called the greenhouse effect.