How do greenhouse gases lead to climate change?

The increasing greenhouse gas concentration in the air accelerates heat retention, and this has led to climate change.

As introduced in “Why are greenhouse gases bad for the atmosphere?” there are three major greenhouse gases: carbon dioxide, methane, and nitrous oxide. These gases are naturally present in the air, but their emissions have been drastically increased by human activity. For example, burning fossil fuels for transportation, electricity, agriculture and industrial processes is thought to be responsible.

Apart from raising the average temperature on Earth, increased greenhouse gases cause a range of environmental effects, including heat waves, droughts, wildfires and rising sea levels. Additionally, the increase has also caused other health risks to human beings, such as respiratory diseases from smog and air pollution and gastrointestinal illnesses from water pollution.