Final answer:
In terms of RCPs, "business as usual" refers to the scenario in climate change projections where there is no substantial effort to reduce greenhouse gas emissions, and human activities continue as they are currently.
Step-by-step explanation:
In terms of RCPs,
"business as usual" refers to the scenario in climate change projections where there is no substantial effort to reduce greenhouse gas emissions, and human activities continue as they are currently.
This scenario assumes that global energy use continues to rely heavily on fossil fuels, and there are no significant changes in social, economic, or technological factors.