this post was submitted on 07 Jan 2025
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Climate - truthful information about climate, related activism and politics.

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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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[–] [email protected] 30 points 3 days ago (2 children)

The big lie she tried to repeat is that NEW fossil plants are cheaper than renewables. In 2019, in US, new FF peaker (cheapest) plants cost over $1/watt, while solar was under $1/watt. FF plants have operating and fuel costs. Solar panels have since dropped 20c/watt since then.

The Australian market has the most developed home solar costs/penetration in the world. It is successful because utility, largely legacy, power is expensive/extortionist. AUS wholesale electricity market averages between 11c to 20c per kwh.

$1/w solar provides a 3% yield/year at under 2c/kwh in AUS for 30 years, which has very high solar production capacity. LFP batteries, now down to 10c/watt also has a 30 year lifespan at 4 hours storage, and is 3% yield at 1c/kwh discharge - charge margin.

6% interest rates means 6c/kwh from solar and 3c/kwh from batteries pays for project with full leverage. Free money at just 10c/kwh revenue. Winfalls at higher revenue rates. Actual solar costs are below $1/watt and interest rates below 6%, and what needs to improve.

As for jobs, new energy is jobs. Adding x gw of solar per year is permanent jobs even if there is little operating staff. Growing x each year is permanent job increases every year.

[–] [email protected] 9 points 2 days ago (1 children)

Australia is amazing for solar. I wish Canada would step up and fix our damn regulations. It’s insanely more expensive to install household rooftop solar here vs Australia. I’m so jealous!

[–] [email protected] 3 points 2 days ago

Cost is entirely based on monopoly utility power, and their power to refuse connection. Australia does have a good 40%+ solar production advantage over Canada though, but Canada does have "net pricing" which banks long summer surpluses for winter.

[–] [email protected] 8 points 3 days ago (1 children)

They do not care about facts. The suffering is the point.

[–] [email protected] 3 points 1 day ago

It's either sadism or greed with the right. Flip a coin.

It's probably more greed in this context though.