Today, electricity is generated from cleaner renewable energy sources like hydropower, geothermal, wind and solar. Because these sources are naturally replenished and produce little to no emissions when converted to electricity, they work to decrease the adverse effects of climate change. The University at Buffalo currently generates and purchases 100% of its electricity from renewable sources. This has been achieved through direct onsite solar (one of the largest on-campus producers of renewable energy in the country), off campus solar generation and the purchasing of renewable energy credits.