The top 5 measures to halve emissions by 2030 as identified by IPCC are wind, solar, energy efficiency, stopping deforestation, and cutting methane emissions. This require no new technology but lacks political will.

Read more on this IPCC climate optimism chart:
https://www.theguardian.com/environment/2023/apr/20/down-to-earth-ipcc-emissions

Down to Earth: The path to radically lower emissions tucked away inside the devastating IPCC report

In this week’s newsletter: The world has no choice but to halve carbon output by 2030 – one chart shows the way forward

The Guardian
@TatianaIlyina I wonder why hydropower is so low; I was hoping for Tidal to do a lot.
@penguin42 @TatianaIlyina “by 2030”. This necessary excludes any major projects, especially that need permitting.
That they didn’t also do a longer term one, and thus, this becomes the default headline is rather frustrating…
@Ember42 @TatianaIlyina I guess it's harder to predict further out
@penguin42 @TatianaIlyina Error bars!
But it wasn’t even a prediction. It was a “what could be done”.
Sure, nearer is easier for that also, but could do it with a ‘current technology’ capability view, and things would likely get better than that…
@penguin42 @Ember42
There are of course longer estimates. The chart is to guide policy in accordance to Paris Agreement which says that we are to become GHG neutral by 2050 and halve emissions by 2030.
@TatianaIlyina @penguin42 Yes, my frustration is that they made the pretty graphic only up to 2030, and that’s all anyone remembers.