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What are the effects of rising nitrous oxide? Are oxygen levels decreasing?

Our worst case SSP5-8.5 predicted 427 ppm for today. Everything is getting worse faster. Have we really avoided the worst case given that we will see 2°C by 2030? Why would anybody want to claim that we have avoided the worst case?

We're going to see worse than the worst case. I don't believe we're prepared for what's coming at us in the next few years let alone decades.

We are certainly not prepared. We do not value life anymore and lack values and can hence only react when it's too late. There is no and never was a window of opportunity.

What happend between 1991 and 2005 causing the methane levels to plateau? Shouldn't we focus on stopping those methane emissions again (that also contribute to long-term carbondioxide emissions)?

Scientists are still trying to pinpoint the cause of recent changes in methane concentration trends (e.g. wetlands). Here are some articles exploring possible sources/sinks: phys.org/news/2019-03... & e360.yale.edu/features/met... & nature.com/articles/d41... & www.science.org/doi/10.1126/...

When I was a little bitty baby My mama would rock me in the cradle When CO2 was only 320ppm