The University of Arizona

Reducing Greenhouse Gas Emissions

photo of NAU green building

Northern Arizona University's Applied Research and Development building is one of the greenest in the world.
Credit: Northern Arizona University

Energy Efficiency
Energy efficiency reduces greenhouse gas emissions and saves money. Southwest state climate plans focus on energy efficiency programs and regulations within utilities, energy efficient buildings and appliances, and increased recycling and use of recycled materials.

Renewable Energy and Fuels
Energy can be generated from a variety of renewable energy sources in the Southwest including solar, wind, geothermal, biogas, and biomass. Imported fossil fuels can also be replaced with cellulosic ethanol and biodiesel produced in the region.

Renewable Energy Supply and Transmission
Significant greenhouse gas emission reductions can be achieved with renewable energy. Realizing this potential depends in part on generating energy in large and small quantities from a variety of sources and transmitting that energy through the U.S. electrical grid.

Reducing Transportation Emissions
Cars and trucks are responsible for a large portion of greenhouse gas emissions from the Southwest. Options for reducing emissions focus on personal and commercial cars and trucks and designing urban areas differently to reduce our reliance on cars.

Carbon Sequestration
Greenhouse gases can be removed from the atmosphere and stored in soil, in trees, and underground. Carbon sequestration options focus on agricultural practices, urban and rural land use, and storing greenhouse gas emissions underground in stable geologic formations.

What is One Million Metric Ton of Carbon Dioxide-Equivalent?
This Web site introduces many different options for reducing greenhouse gas emissions in the Southwest. Comparing how well different options reduce greenhouse gas emissions is easier when a single unit of measure is used.