1) Iceland (https://www.clickenergy.com.au/news-blog/12-countries-leading-the-way-in-renewable-energy#:~:text=Iceland%20is%20currently%20the%20only,and%2013%25%20from%20geothermal%20power.) 2) Methane (https://www.sciencedaily.com/releases/2014/03/140327111724.htm#:~:text=While%20carbon%20dioxide%20is%20typically,as%20a%20heat%2Dtrapping%20gas.&text=As%20temperatures%20rise%2C%20the%20relative,these%20sources%2C%20the%20researchers%20report.) 3) Wind (https://www.aweablog.org/setting-the-record-straight-about-winds-lifecycle-emissions-and-return-on-energy-invested/#:~:text=That%20article's%20abstract%20explains%20that,into%20manufacturing%20and%20installing%20it.) 4) 25 years (https://www.sunrun.com/go-solar-center/solar-articles/how-long-do-solar-panels-really-last#:~:text=The%20Life%20Expectancy%20of%20Solar%20Panels&text=To%20put%20your%20mind%20at,30%20years%20%E2%80%94%20or%20sometimes%20more.&text=However%2C%20this%20doesn't%20mean,after%20a%20couple%20of%20decades.)
