Tonight we are launching our Net Zero Carbon Roadmap for Leeds, which shows a pathway for how Leeds can get to net-zero emissions by the city’s target date of 2030.

Follow the live tweets @LeedsClimateCom #LeedsClimate #PCANcities
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We're looking forward to hearing responses to the roadmap's presentation by members of the Leeds Citizens' Jury, Polly Cook of Leeds City Council, @SimonBowens of Friends of the Earth and Elizabeth Edgington of @BITC

#LeedsClimate #PCANcities
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Leeds’ carbon footprint has gone down: between 2000-2019 emissions fell by 40% (largely due to national decarbonisation of the grid).

Our share of the global carbon budget in 2020 is 31m tonnes; at ca. 4m tonnes a year, that’s used up by 2029

#LeedsClimate #PCANcities
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During lockdown #1, emissions were ca. 43% lower – overall, in 2020, they were ca 13% lower than normal. Sounds encouraging, but this only delays the point we eat up our carbon budget by 2 months!
#LeedsClimate #PCANcities
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Following science-based targets, Leeds needs to make 70% reductions by 2025 – which means another 25% reduction in emissions in the next 4-5 years.

We need to accelerate significantly!

#LeedsClimate #PCANcities
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Our report looks at Scope 1 & 2 emissions, but when you take in to account Scope 3 (net carbon from consumption and longer distance travel, inc aviation) the challenge is even greater: flights taken by Leeds residents add ca. 21% to the existing baseline.

#LeedsClimate
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How can we get to net-zero? The roadmap shows a range of cost-effective, cost-neutral and tech viable measures but this still leaves 40% gap…

#LeedsClimate #PCANcities

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Homes and transport dominate the top-ten list of cost-effective options.
#LeedsClimate #PCANcities

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Doing the cost-effective options would require £600m investment per year thru 2020s but would cut Leeds’ 2030 energy bill by ££651m a year and create getting for 15,000 years of extra employment.
This would close the gap by 41% …
#LeedsClimate #PCANcities

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Cost neutral and technically viable options get more expensive - from £900m a year up to £1.1m a year - but they would help to close the gap up to 60%.... That still leaves 40% gap to close....

#LeedsClimate #PCANcities

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To achieve Leeds' 2030 climate emergency target, we need to look at other innovative or 'stretch' measures.
That's ALOT of tree-planting, among other measures like hydrogen-based heating, electrification of domestic cooking, and more.

#LeedsClimate #PCANcities

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The 'Mind the gap' graph, showing the impact that the various options have on Leeds' carbon footprint.

You can download the roadmap here: https://t.co/koiFvBkwR6

#LeedsClimate #PCANcities

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More from Tech

Ok, I’ve told this story a few times, but maybe never here. Here we go. 🧵👇


I was about 6. I was in the car with my mother. We were driving a few hours from home to go to Orlando. My parents were letting me audition for a tv show. It would end up being my first job. I was very excited. But, in the meantime we drove and listened to Rush’s show.

There was some sort of trivia question they posed to the audience. I don’t remember what the riddle was, but I remember I knew the answer right away. It was phrased in this way that was somehow just simpler to see from a kid’s perspective. The answer was CAROUSEL. I was elated.

My mother was THRILLED. She insisted that we call Into the show using her “for emergencies only” giant cell phone. It was this phone:


I called in. The phone rang for a while, but someone answered. It was an impatient-sounding dude. The screener. I said I had the trivia answer. He wasn’t charmed, I could hear him rolling his eyes. He asked me what it was. I told him. “Please hold.”

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THREAD: 12 Things Everyone Should Know About IQ

1. IQ is one of the most heritable psychological traits – that is, individual differences in IQ are strongly associated with individual differences in genes (at least in fairly typical modern environments). https://t.co/3XxzW9bxLE


2. The heritability of IQ *increases* from childhood to adulthood. Meanwhile, the effect of the shared environment largely fades away. In other words, when it comes to IQ, nature becomes more important as we get older, nurture less.
https://t.co/UqtS1lpw3n


3. IQ scores have been increasing for the last century or so, a phenomenon known as the Flynn effect. https://t.co/sCZvCst3hw (N ≈ 4 million)

(Note that the Flynn effect shows that IQ isn't 100% genetic; it doesn't show that it's 100% environmental.)


4. IQ predicts many important real world outcomes.

For example, though far from perfect, IQ is the single-best predictor of job performance we have – much better than Emotional Intelligence, the Big Five, Grit, etc. https://t.co/rKUgKDAAVx https://t.co/DWbVI8QSU3


5. Higher IQ is associated with a lower risk of death from most causes, including cardiovascular disease, respiratory disease, most forms of cancer, homicide, suicide, and accident. https://t.co/PJjGNyeQRA (N = 728,160)