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Climate Change > Cities and climate change

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message 1: by K.G. (new)

K.G. (kgjohnston) | 25 comments You might enjoy the following article.

https://medium.com/@WWF/cities-climat...


message 2: by Clare (new)

Clare O'Beara | 6043 comments Mod
Thanks!


message 3: by Clare (new)

Clare O'Beara | 6043 comments Mod
The nights are warming rapidly, so the heat of the day does not dissipate and give relief. The NYTimes has produced this graph on cities in USA with daytime and nighttime warming. They remind us that the urban heat island effect and lack of green spaces contribute to cities being warmer.

https://www.nytimes.com/interactive/2...

I find the dates on the graph interesting; we can see the cooling after WW2 when all the bombing had thrown dust into the air, and after Mount St Helens erupted in 1980.


message 4: by Clare (new)

Clare O'Beara | 6043 comments Mod
Cities are hosting large climate marches.

https://www.ecowatch.com/rise-for-cli...


message 5: by Clare (new)

Clare O'Beara | 6043 comments Mod
The British Broadcasting Corporation has been told to be bolder in its coverage of climate change.

https://www.ecowatch.com/bbc-climate-...


message 6: by Robert (new)

Robert Zwilling | 2000 comments There are many aspects to fake news, it can be 100 percent accurate about a fake event that really happened.


message 7: by Clare (new)

Clare O'Beara | 6043 comments Mod
California has committed to zero carbon, and is looking to zero energy building codes and clean cars to help.

Dan Gearino tells us:
Getting to Net Zero in California, for Everything

California Gov. Jerry Brown surprised many this week when he signed an executive order that says the state must achieve net-zero carbon emissions by 2045.

To reach net zero, all the state’s emissions would be offset by the ability to remove them from the atmosphere, either through natural systems or carbon capture technology.

It’s a bold but necessary goal, if there is hope of limiting global warming to safe levels, and would require a remaking of just about every part of the economy.

Brown announced this at the same event in which he signed a bill requiring the state to get all of its electricity from carbon-free sources by 2045.

By adding the executive order to the ambitious carbon-free electricity bill, California has reached a new level of climate leadership.

The order covers California’s entire economy, the fifth-largest in the world. It sets the one goal—net-zero by 2045—but doesn’t spell out how to get there. Future lawmakers and regulators will have to set those rules, which will need to include sweeping changes to building codes, the vehicle fleet and electricity generation.

A key takeaway: The order is expected to hasten the state’s move toward net-zero buildings.

It was only a few months ago that the California Energy Commission approved new building codes that require rooftop solar on most new buildings starting in 2020. At that time, some advocates said they wanted to see a greater commitment to net-zero buildings, which generate as much or more electricity than they consume.

Now, with Brown’s action, the state’s trajectory is clearer.

While an executive order does not have the force of legislation, several important California climate policies started as executive orders, said Chris Busch, director of research for the clean-energy think tank Energy Innovation.

“This isn’t just words,” he told me. “We have a history of meeting our targets. We are not just putting empty commitments out there. We’re doing this aware of some of the challenges and with a track record of success.”

California is now the largest economy to make a net-zero commitment. (France is the next-largest entity to set such a goal.)

The challenge ahead is a huge one.

“California is committed to doing whatever is necessary to meet the existential threat of climate change,” Brown said at the signing event Monday. “This bill, and others I will sign this week, help us go in that direction. But have no illusions, California and the rest of the world have miles to go before we achieve zero-carbon emissions.”


message 8: by Clare (new)

Clare O'Beara | 6043 comments Mod
We were in London for a few days and they have just had their warmest winter day ever recorded. Followed immediately by an even warmer one. Same day last year was blizzard conditions.

https://www.bbc.com/news/uk-47374936


message 9: by Robert (new)

Robert Zwilling | 2000 comments You could say it is blowing hot and cold. It appears to be chaotic conditions generated by an unstable system that is trying to regain a stable situation. Every burst of super cold air that leaves the polar regions for the lower latitudes is not completely replaced. The warm bursts are drawing from increasing sources of hot air that isn't diminishing any time soon. Going back millions of years, during the last time carbon dioxide levels were higher than today, the average temperatures were a around 7 F degrees hotter than today. The big difference between then and now was the time it supposedly took for those changes to happen. However on a recent PBS program, it was stated that during one of the ice age periods the Neanderthals encountered, the temperatures fell from seasonally warm to consistently freezing levels in only 10 years.


message 10: by Clare (new)

Clare O'Beara | 6043 comments Mod
This post is a link to a 'sponsored' page; an ad in other words. This shows how Milan is making progress with sustainability. We can see the Bosco Verticale - tree-clad apartment blocks. Also, other buildings are being built smarter.

https://www.exploreitaly.com/stories/...


message 11: by Clare (new)

Clare O'Beara | 6043 comments Mod
Here is the Wikipedia article on the Bosco Verticale and if you just Google images you will see the trees in all stages of development.

https://en.wikipedia.org/wiki/Bosco_V...


message 12: by Clare (new)

Clare O'Beara | 6043 comments Mod
Cities are going carless or electric cars only.

https://singularityhub.com/2019/09/22...


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