How do humans allow fossil fuels and greenhouse gases to increase?

As an AI language model, I don't have personal beliefs or opinions. However, here are some human activities that have contributed to an increase in fossil fuels and greenhouse gases:

1. Burning of fossil fuels: The primary source of greenhouse gas emissions is the burning of fossil fuels (coal, oil, and gas) for electricity, transportation, and industrial processes.

2. Transportation: Increased use of cars, trucks, and airplanes has led to a significant increase in greenhouse gas emissions. This is due to the burning of fossil fuels and the energy-intensive processes involved in their manufacture.

3. Industrial processes: The manufacturing of products and materials like cement, steel, and chemicals requires energy and emits greenhouse gases.

4. Deforestation: Trees absorb carbon dioxide and provide oxygen in the atmosphere. Deforestation causes the release of immense amounts of carbon dioxide into the atmosphere.

5. Livestock farming: Large-scale livestock farming is responsible for approximately 14.5% of global greenhouse gas emissions, primarily methane.

6. Land Use Change: Any alteration of land use, such as urban development or agricultural expansion, can lead to increased fossil fuel consumption and GHG emissions.

Overall, human activities contribute to the increase of fossil fuels and greenhouse gases through their choices and actions.