Annotated references “The vitality of the sun’s alternative source of energy”

these are the sources
Ashok, S. (2020, March 21). Solar energy. Retrieved from
Christiansen, E. S., Mehlum, E., & Ocean Agenda. (2019). How fast will the world move to cleaner energy? Two scenarios. Retrieved from
Maryniak, G. (2012, August 7). Storage, Not Generation, is the Challenge to Renewable Energy. Retrieved from
National Academy of Engineering. (n.d.). Make Solar Energy Economical. Retrieved from
Roser-Renouf, C., Maibach, E. W., Leiserowitz, A., & Zhao, X. (2014). The genesis of climate change activism: from key beliefs to political action. Climatic Change, 125(2), 163178. doi: 10.1007/s10584-014-1173-5