Question

only climate models that incorporate anthropogenic climate forcers alongside natural ones can accurately explain earth’s warming temperatures.

which human activity is the leading contributor to climate change?

• burning fossil fuels for electricity and transportation
• application of fertilizers to improve agricultural yields
• deforestation for timber and land development
• burning trash for waste disposal

Explanation:

To determine the leading human contributor to climate change, we analyze each option:

• Burning fossil fuels (coal, oil, gas) for electricity and transportation releases large amounts of greenhouse gases (like CO₂), which is the primary driver of anthropogenic climate change.
• Fertilizer application contributes to climate change (e.g., nitrous oxide emissions) but is not the leading cause.
• Deforestation reduces carbon sequestration and releases CO₂ but is less impactful than fossil fuel burning overall.
• Burning trash emits greenhouse gases and pollutants but is not the leading contributor compared to fossil fuel combustion.

Answer:

A. burning fossil fuels for electricity and transportation