Include a fact; example; definition; quotation; or a concrete detail about point #1

Answer 1

Point #1: Global warming is primarily caused by human activities.

Fact: The Intergovernmental Panel on Climate Change (IPCC) has stated that it is extremely likely that more than half of the observed increase in global average surface temperature since the mid-20th century is due to human influence.

Example: The burning of fossil fuels like coal, oil, and natural gas for industrial processes, transportation, and electricity production releases greenhouse gases such as carbon dioxide into the atmosphere, contributing to global warming.

Definition: Global warming refers to the long-term increase in Earth's average surface temperature due to the buildup of greenhouse gases, primarily carbon dioxide, in the atmosphere.

Quotation: "It is now clear that global warming is mostly due to human-generated increases in greenhouse gases" - National Academy of Sciences

Concrete Detail: The concentration of carbon dioxide in the atmosphere has increased by about 47% since the industrial revolution, primarily due to human activities.