Which of the following activities would decrease atmospheric carbon levels?

Using renewable energy reduces atmospheric carbon levels because it relies on energy sources that do not emit carbon dioxide when generating electricity or powering vehicles. Renewable sources like solar, wind, and hydroelectric power produce energy without burning fossil fuels, which are significant contributors to greenhouse gas emissions. Transitioning to renewable energy decreases the reliance on fossil fuels, thus lowering the overall carbon footprint and helping to mitigate climate change.

In contrast, deforestation involves cutting down trees, which act as carbon sinks. When trees are removed, not only is the capacity for carbon absorption diminished, but the carbon stored within the trees is released back into the atmosphere. Burning fossil fuels releases substantial amounts of carbon dioxide, which increases atmospheric carbon levels. Industrial waste discharge can vary, but many industrial activities also contribute to carbon emissions, further exacerbating atmospheric carbon problems.