This likely will not impact most travelers (who donât cancel their flights) â but donât forget to cancel your Southwest Wanna Get Away or Ding! ticket at least 10 minutes before departure if you donât plan on flying. You wonât get a credit for the price of your ticket if you donât! Southwest Has A New No-Show Policy.
Basically, carbon sinks are holding tanks for carbon or carbon compounds, like carbon dioxide (CO2). One of the largest reservoirs of carbon is the Earthâs hard rock crust. Over the eons sedimentary rocks were formed that contain loads of carbon compounds, including the hydrocarbons that we now use as fossil fuels.
The oceans are the Earth's largest carbon storage medium, so if the atmospheric CO2 increase were natural, it would likely be coming from the oceans. But we know the CO2 increase is not coming from the oceans, because the pH of the oceans is dropping (a.k.a. ocean acidification).