1. Solar reduces air pollution, as generating electricity with solar panels produces little to no harmful greenhouse gases. The average 4KW solar system in Australia will prevent between 3.75 – 4.05 tonnes of carbon dioxide going into the atmosphere per year.
This is equivalent to offsetting the energy use of an average house for roughly 110 days. That's a huge step towards mitigating the human impact of climate change.
2. Solar reduces the need for finite resources, as solar energy is renewable. The sun is the world's most abundant energy source, producing an amazing 173,000 terawatts of solar energy every second, enough to power the world 10,000 times. As we all know, fossil fuels are a finite, non-renewable resource that cause huge and irreparable environmental damage. Switching to solar today is the best way to hedge against the reality of finite fuel resources.
3. Solar reduces water pollution, a little known but huge environmental benefit of solar. Traditional biomass and geothermal power plants, such as natural gas and coal-fired facilities, require massive amounts of water to facilitate their vital cooling requirements. Beside the small amount used in the production of the equipment (unavoidable for all manufacturing processes) solar energy generation requires no water.