Greenhouse emissions are the major source of global warming mainly caused by the release of greenhouse gases due to human activity. The greatest activity is the combustion of fossil fuel (coal, oil, gas) in energy, transport, and industry. This releases enormous amounts of carbon dioxide (CO2) that traps heat in and interrupts the energy balance of the earth.
Deforestation plays a massive role. Forests play a crucial role in carbon sinks. Deforestation frees up the trapped carbon and eliminates one of the main ways to absorb CO2 in the air. This directly heightens greenhouse gas concentrations.
Non-CO2 greenhouse gases are potent and are released by industrial processes. These are production methane (CH4), nitrous oxide (N2O) and fluorinated gases. However, unlike CO2 they are much more effective at trapping heat per molecule although it is not as abundant.
One of the biggest sources of emission is agriculture. Extensive livestock contributes to the production of a lot of methane. Nitrous oxide is emitted on a large scale through the use of modified fertilizers. Another significant source of methane is cultivation of rice in flooded paddies.
Methane, a product of decaying organic matter at landfill is among some of the importance of waste management. Poor practice in waste management unnecessarily contributes towards the amount of climate-change-inducing gases in the atmosphere.
Conclusion:
Global warming is directly caused by human actions that mostly include burning of fossil fuels, deforestation, industrial pollution, intensive farming and improper waste management. This or this enhanced greenhouse effect is the essence of anthropogenic climate change. These particular sources of emission must be dealt with to reduce further heating and its compounding effects.