Carbon dioxide (CO2) is the primary greenhouse gas emitted by human activities, such as burning fossil fuels for energy and transportation, deforestation, and certain industrial processes. It traps heat in the atmosphere, leading to global warming and climate change.

Natural gas is a fossil fuel and a non-renewable energy source. It is formed from the remains of ancient plants and animals that have been buried and subjected to high pressure and temperature over millions of years.

Heating and cooling account for approximately 48% of residential energy consumption in the United States. This includes the use of furnaces, air conditioners, heat pumps, and other systems to maintain comfortable indoor temperatures.

All of the options are effective ways to reduce energy consumption when using electronic devices. Unplugging devices when not in use prevents them from drawing power even when turned off. Using energy-efficient appliances and turning off lights when leaving a room also help conserve energy.

Composting is the process of breaking down organic materials by microorganisms into a nutrient-rich soil amendment. It helps reduce the amount of waste sent to landfills and provides a natural fertilizer for plants.

Reducing your carbon footprint at home leads to lower energy bills, improved air quality, and reduced water consumption. It does not result in increased greenhouse gas emissions.

Setting the thermostat to 68°F (20°C) in the winter is recommended to save energy. Each degree higher can increase energy consumption by up to 5%.

Taking public transportation or riding a bicycle are sustainable transportation options that help reduce carbon emissions. Driving a gasoline-powered car and flying on a commercial airplane contribute to greenhouse gas emissions.

Weatherizing a home involves making improvements to reduce air leaks and improve insulation, which helps reduce energy consumption and lower heating and cooling costs.

Watering the lawn more frequently is not a water-saving practice. Taking shorter showers, fixing leaky faucets, and using a low-flow showerhead are all effective ways to conserve water at home.

Waste reduction refers to the process of reducing the amount of waste produced. This can be achieved through various methods, such as reducing consumption, reusing items, and composting organic materials.

Natural gas generators are not a renewable energy source. They rely on the combustion of natural gas, a fossil fuel, to generate electricity.

Setting the thermostat to 72°F (22°C) in the summer is recommended to save energy. Each degree lower can reduce energy consumption by up to 5%.

Using energy-efficient appliances at home leads to lower energy bills, reduced carbon emissions, and increased appliance lifespan. It does not result in higher energy consumption.

Recycling serves multiple purposes: it generates electricity through waste-to-energy processes, reduces the amount of waste sent to landfills, and creates new products from recycled materials.