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 https://www.britannica.com/science/solar-energy
Christiansen, E. S., Mehlum, E., & Ocean Agenda. (2019). How fast will the world move to cleaner energy? Two scenarios. Retrieved from https://www.weforum.org/agenda/2019/09/will-the-energy-transition-happen-fast-enough-two-scenarios/
Maryniak, G. (2012, August 7). Storage, Not Generation, is the Challenge to Renewable Energy. Retrieved from https://www.forbes.com/sites/singularity/2012/07/20/storage-not-generation-is-the-challenge-to-renewable-energy/#27d615f741e1
National Academy of Engineering. (n.d.). Make Solar Energy Economical. Retrieved from http://www.engineeringchallenges.org/challenges/solar.aspx
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