Climate Change is primarily caused by what?

• A. A natural cycle only.
• B. A rise in the Earth's average temperature, primarily caused by emissions from burning fossil fuels.
• C. A sudden drop in temperatures globally.
• D. A regional phenomenon.

Answer: (B)

Climate change means long-term changes in the Earth’s average conditions, including temperature, precipitation, and sea levels. The most important driver today is the enhanced greenhouse effect caused by human activities. When we burn fossil fuels—coal, oil, and gas—carbon dioxide and other greenhouse gases are released into the atmosphere. These gases trap heat that would normally escape back into space, warming the planet. This heat-trapping effect has intensified as fossil fuel use has risen since the Industrial Revolution, leading to a noticeable increase in global temperatures.

Natural cycles can influence climate, but they don’t explain the rapid, sustained warming we’ve observed in recent decades. A sudden global temperature drop would be cooling, not warming, and climate change refers to global patterns, even though some places may experience different local effects. So the primary cause is emissions from burning fossil fuels, which raises greenhouse gas levels and traps more heat, raising Earth’s average temperature.