NecroJoe t1_iycaaim wrote on November 30, 2022 at 9:28 AM

Reply to comment by Winter_Criticism_236 in Japan successfully uses steam to propel Moon spacecraft | Japan’s space agency Jaxa has announced it successfully used steam to propel its spacecraft that was launched as one of the payloads aboard Nasa’s Orion spacecraft. by yourSAS

I could be wrong, but I *think* it's not as bad as C02, but it is by far the biggest contribution to greenhouse effect simply because there's so much more than anything else by orders of magnitude.

NoPriorThreat t1_iyd2obs wrote on November 30, 2022 at 2:38 PM

No, one molecule of water has much worse greenhouse effect than CO2, it is all about vibrational levels.

Winter_Criticism_236 t1_iydrd4o wrote on November 30, 2022 at 5:24 PM

I liked this explanation : temperature controls how much water vapour there is, there is higher temperature due to c02 and other non condensing gases. Water vapour is 60% of the warming in a ongoing feedback loop... https://www.acs.org/content/acs/en/climatescience/climatesciencenarratives/its-water-vapor-not-the-co2.html