When you look up at a crescent moon, there's a blurry, dimly lit outline that isn’t quite as bright as the crescent. This is FROM earthshine -- the sunlight reflected from Earth onto darker parts of the moon. Scientists have discovered that our planet's earthshine has been declining, and one of the reasons for this could be climate change. In this episode of PureScience, Simrin Sirur explains the significance of earthshine and why it could be shrinking. Brought to you by  @Kia India  ----more----Supplementary readings Study: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021GL094888----more----Global warming "hiatus": https://www.climate.gov/news-features/climate-qa/why-did-earth%E2%80%99s-surface-temperature-stop-rising-past-decade----more----Pacific decadal oscillation: https://www.metoffice.gov.uk/weather/learn-about/weather/oceans/pacific-decadal-oscillation----more----https://www.worldclimateservice.com/2021/09/01/pacific-decadal-oscillation/