Right now, could you prepare a slice of toast with zero embodied carbon emissions?
Since at least the 2000s, big polluters have tried to frame carbon emissions as an issue to be solved through the purchasing choices of individual consumers.
Solving climate change, we've been told, is not a matter of public policy or infrastructure. Instead, it's about convincing individual consumers to reduce their "carbon footprint" (a term coined by BP: https://amp.theguardian.com/commentisfree/2021/aug/23/big-oil-coined-carbon-footprints-to-blame-us-for-their-greed-keep-them-on-the-hook).
Yet, right now, millions of people couldn't prepare a slice of toast without causing carbon emissions, even if they wanted to.
In many low-density single-use-zoned suburbs, the only realistic option for getting to the store to get a loaf of bread is to drive. The power coming out of the mains includes energy from coal or gas.
But.
Even if they invested in solar panels, and an inverter, and a battery system, and only used an electric toaster, and baked the loaf themselves in an electric oven, and walked/cycled/drove an EV to the store to get flour and yeast, there are still embodied carbon emissions in that loaf of bread.
Just think about the diesel powered trucks used to transport the grains and packaging to the flour factory, the energy used to power the milling equipment, and the diesel fuel used to transport that flour to the store.
Basically, unless you go completely off grid and grow your own organic wheat, your zero emissions toast just ain't happening.
And that's for the most basic of food products!
Unless we get the infrastructure in place to move to a 100% renewables and storage grid, and use it to power fully electric freight rail and zero emissions passenger transport, pretty much all of our decarbonisation efforts are non-starters.
This is fundamentally an infrastructure and public policy problem, not a problem of individual consumer choice.
#ClimateChange #urbanism #infrastructure #energy #grid #politics #power @green
@ajsadauskas @green is it not worse than that?
There is more or less a 1:1 correlation between energy use and GDP.
We don’t have the time to build out the scale of renewable infrastructure that would replace our current energy use.
We need to use much less energy which means much smaller and therefore radically different economies
https://tickzero.com/film-3-techno-optimism/
@urlyman @ajsadauskas @green Most applications [not toasting bread, though] you need about 1/3 as much renewable as fossil, because final vs primary energy. So there's that.
@nebulousmenace @ajsadauskas @green I agree that for consumer end-use, renewable* power is waaay preferable to fossil-fuelled equivalents. But that’s just part of the problem.
We absolutely need them at scale to buy us time though.
*renewables are more properly thought of as re-buildables
@nebulousmenace @urlyman @ajsadauskas @green Saul Griffith has been really great at explaining this issue. We don’t need to replace fossil primary energy completely, because so much of it is just waste from combustion losses that simply go away when you switch to non combustion electricity generation like renewables. Saul Griffith. 2021. Electrify: An optimist’s playbook for our clean energy future. Cambridge, MA: MIT Press. https://amzn.to/31naqTU
@jgkoomey @nebulousmenace @ajsadauskas @green thanks for the recommendation Jonathan. I’ll explore that. I’m aware of the point you make about not needing to replace fossil energy completely.
I defer to your scholarship. From my much more limited awareness it sure looks like the scarce commodity is time. There’s what is possible in principle and what’s possible within the less-than-a-decade of Paris budget we have left