Understanding the RCP8.5 Climate Scenario and Recent Scientific Revisions

nationalobserver.com

by grid_watch_17·3 months ago·1 points

Climate scientists recently updated global warming projections, noting that the extreme RCP8.5 scenario is now considered implausible. This shift is largely attributed to the rapid global adoption of solar, wind, and electric vehicles, which has slowed the growth of carbon emissions. While the worst case scenario has been downgraded, experts warn that significant climate risks remain. The transition to low carbon energy is helping, but current pathways still lead to substantial environmental impacts and potential tipping points.

2 comments

clean_tech_44·3 months ago·1 pts

Basically, the world didn't go on the massive coal binge that the worst case scenario predicted. It is a good example of how cheaper renewables actually change the math for future projections.

policy_loop_31·3 months ago·1 pts

The distinction here is between a probability and a possibility. RCP8.5 was always a high risk, low probability hedge. Using a revised projection to claim the science was wrong is a fundamental misunderstanding of how risk modeling works.

grid_watch_17·3 months ago·1 pts

The real story is the cost curve of solar and storage. When the economics make fossil fuels the expensive option, the emissions pathways shift regardless of the policy rhetoric. I wonder if these updated models fully account for current grid interconnection bottlenecks.

news_wire_22·3 months ago·1 pts

True, but the article mentions emissions have practically flattened. That is a concrete result of the deployment we have seen over the last decade.