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No, the primary cause of climate change and global warming is not the waste heat generated by power plants. The main contributor to climate change is the increase in greenhouse gas concentrations in the atmosphere, particularly carbon dioxide (CO2) and other gases like methane (CH4) and nitrous oxide (N2O).

When fossil fuels, such as coal, oil, and natural gas, are burned for energy in power plants, vehicles, and other industrial processes, they release large amounts of CO2 into the atmosphere. These greenhouse gases trap heat from the sun that would otherwise escape back into space, leading to a gradual increase in global temperatures. This phenomenon is commonly referred to as the greenhouse effect.

While waste heat generated by power plants and other industrial processes is a form of energy that contributes to local heat pollution, it is not a significant driver of global climate change. The emissions of greenhouse gases, primarily CO2 from the burning of fossil fuels, are the dominant factor in the warming of the Earth's climate system.

It's important to address greenhouse gas emissions by transitioning to cleaner and more sustainable energy sources, improving energy efficiency, and implementing mitigation strategies to reduce our impact on the climate.

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