this post was submitted on 21 Sep 2023
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Do you know what I learned during the pandemic? CO2 emissions by PEOPLE are a rounding number. The pandemic hit and CO2 barely changed.
It's industry and corporations and farms that output like 80 % of all CO2, yet we're made to believe it's "on us" to make a change.
It's the same with recycling, it's pushed like we're saving the planet recycling some bottles while a paper plant will pollute the equivalent of 200,000 homes...
Yep. Energy saving light globes only save you money, they do insignificance against the climate emergency
Do you have figures for that?
If something consumes 8w of power rather than 60w that's a 52w energy reduction.
According to this site 1kw produces 0.94kg of CO2 if a coal power station is used. https://slightlyunconventional.com/co2-per-kwh-of-electricity/
What percentage of power comes from coal globally varies massively, but let's say 30% average as it's probably more https://ourworldindata.org/grapher/share-electricity-coal
Around 7.5 billion lightbulbs are sold in the USA alone. https://lightbulbatoz.com/articles/how-many-light-bulbs-are-sold-each-year/
So let's make a conservative estimate of 30 billion new bulbs per year globally.
Gives a global annual reduction in co2 out put directly from lighting at 1kw÷54÷0.94kg×3000000000÷1000÷30%= about 17 metric killotone.
Shit yeah, drop in the ocean. That's cumulative though, so 17 last year, 17 this year, 17 next year.
Also led bulbs should last a minimum of 12 times longer than incandescent, so unless they use more than 12 times the co2 to produce there's going significant savings there.
Keep in mind also that the energy you save was previously heating your house. so depending on where you live, how you heat your house and how well your house is isolated you could be saving close to nothing
I think to be honest that would very much be cancelled out by the fact it heats your house. So depending on where you live you may need to use power to apply additional cooling to remove that heat.