What is the consequence of an increase in greenhouse gases in the atmosphere?

An increase in greenhouse gases in the atmosphere leads to global warming because these gases trap heat from the sun, creating a 'greenhouse effect.' This effect results in the warming of the Earth's surface as the trapped heat cannot efficiently escape back into space. The enhanced concentration of greenhouse gases, such as carbon dioxide, methane, and nitrous oxide, intensifies this effect, leading to rising global temperatures.

Global warming has far-reaching implications for climate systems, resulting in altered weather patterns, melting ice caps, and rising sea levels, among other changes. Understanding this process is crucial for recognizing the impact of human activities on the environment and addressing issues related to climate change effectively.

The other options do not accurately reflect the consequences of increased greenhouse gases; for instance, a decrease in global temperatures and a reduction in natural disasters run counter to the scientific consensus on the effects of climate change, while increased biodiversity does not correlate with the direct effects of greenhouse gas emissions.