The correct answer is China.
China is the world’s biggest GHG emitter, accounting for 27.8% of global emissions in 2020. The United States is the second biggest emitter, accounting for 14.5% of global emissions. India is the third biggest emitter, accounting for 7.1% of global emissions. South Africa is the 15th biggest emitter, accounting for 1.4% of global emissions.
China’s emissions are mainly due to its reliance on coal for electricity generation. The country is also a major producer of steel and cement, which are both energy-intensive industries. The United States’ emissions are mainly due to its transportation sector, which is the largest source of greenhouse gas emissions in the country. India’s emissions are mainly due to its reliance on coal for electricity generation and its growing population. South Africa’s emissions are mainly due to its reliance on coal for electricity generation and its mining industry.
The world’s biggest GHG emitters are responsible for the majority of global greenhouse gas emissions. These emissions are causing climate change, which is a serious threat to the planet. It is important for the world’s biggest GHG emitters to take action to reduce their emissions and mitigate the effects of climate change.