Climate Change / Global Warming Discussion

[mspohr]

Visualised: how all of G20 is missing climate goals — but some nations are closer than others

As world leaders gather at Cop28, these charts show how far away the major economies are from their targets

www.theguardian.com

Not a single G20 country has policies in place that are consistent with the Paris agreement’s goal of limiting global heating to 1.5C and meeting their “fair share” of emissions reduction.

The US’s forecast 2030 emissions of more than 5bn metric tonnes is significantly higher than the 1.9bn metric tonnes it was allocated by the analysts under a 1.5C-compatible fair share model. The US has so far achieved about one-third of its 2030 emissions reduction target and took a major step forward with Joe Biden’s Inflation Reduction Act, which included promising signs including investments in clean energy.

When explaining the fair share classifications, a researcher at the Climate Action Tracker said: “Assessing what is fair depends on the viewpoint and interests of governments. Many consider it fair that those who have made a bigger contribution to the problem, or who have a higher capability to act, should do more. To create our ranges, we compiled a wide range of perspectives on what is considered a fair contribution to greenhouse gas reductions: so-called effort-sharing studies.”

 

[Raffy.Roma]

https://twitter.com/x/status/1732829788383920591

Fossil fuels are causing global warming 100 times faster than past natural changes. We are taking Earth’s climate far beyond natural limits, with carbon dioxide & temperature levels never seen before.
In the video above we can see Carbon Dioxide CO2 levels and Temperatures in last 20000 years.

 

[cpa]

California is requiring all new homes to be built with #solar panels, all public buses to be zero emissions, & building massive batteries to provide 24 hr #renewableenergy.

Raffy,

I live in California. I cannot comment on public buses and the massive batteries.

I can comment that my dim recollection of the "mandatory installation of solar panels on all new homes" is a token 1,000 watts. While I do not sneeze at any sort of renewable form of electricity generation, a mere kilowatt of panels will not put much of a dent in our overall usage of electricity, especially in the interior valleys (where I live). Summers here consistently are 100°-plus from some time in June through September. Overnight lows hover around 68° to 75°.

One would think that a more sensible approach would be to have canopies installed in most public parking areas at malls, large office complexes, airports, and public schools. Then erect solar panels with battery storage on those canopies. I don't know how much area those canopies with panels would encompass, nor do I know the potential sizing of the panels.

There is an office building very close to our home. I think they have four canopies covered with solar panels. There have to be close to 300 panels in total. With a modest 300 watts per panel, that is a 90kW rated system. The sun shines about 320 days per year here.

Imagine if this were adopted statewide!

 

[mspohr]

Raffy,

I live in California. I cannot comment on public buses and the massive batteries.

I can comment that my dim recollection of the "mandatory installation of solar panels on all new homes" is a token 1,000 watts. While I do not sneeze at any sort of renewable form of electricity generation, a mere kilowatt of panels will not put much of a dent in our overall usage of electricity, especially in the interior valleys (where I live). Summers here consistently are 100°-plus from some time in June through September. Overnight lows hover around 68° to 75°.

One would think that a more sensible approach would be to have canopies installed in most public parking areas at malls, large office complexes, airports, and public schools. Then erect solar panels with battery storage on those canopies. I don't know how much area those canopies with panels would encompass, nor do I know the potential sizing of the panels.

There is an office building very close to our home. I think they have four canopies covered with solar panels. There have to be close to 300 panels in total. With a modest 300 watts per panel, that is a 90kW rated system. The sun shines about 320 days per year here.

Imagine if this were adopted statewide!

California’s 2020 Solar Mandate requires all newly built homes to install solar photovoltaic systems. These requirements are based on the floor area of the home and the climate zone.

The solar panel systems must be sized to provide for the full annual energy usage of the home. In order to increase home energy efficiency, it’s expected that sizes will generally range between 2.7 kilowatts and 5.7 kilowatts under the new Title 24 requirements. These average system sizes take into consideration the fact that new homes will also include other technology that will enable them to be more energy-efficient overall.

 

[Raffy.Roma]

https://twitter.com/x/status/1732920980589142349

Denmark is building an artificial island that will house up to 600 wind turbines and provide enough wind power for the entire country.

This is the way to go. Let's learn from Denmark to phase out from fossil fuels and take bold Climate actions.

 

[eevee-fan]

https://twitter.com/x/status/1732920980589142349

Denmark is building an artificial island that will house up to 600 wind turbines and provide enough wind power for the entire country.

This is the way to go. Let's learn from Denmark to phase out from fossil fuels and take bold Climate actions.

... as China says that's why they were building islands in the South China Sea. LOL

 

[Raffy.Roma]

... as China says that's why they were building islands in the South China Sea. LOL

Each Country should do it. We need to phase out from fossil fuels as soon as possible. It's widely known that in six years we will overtake the threshold of 1.5 degrees Celsius set by the Agreement of Paris. We cannot wait too much to phase out from fossil fuels.

 

[Raffy.Roma]

Each Country should do it. We need to phase out from fossil fuels as soon as possible. It's widely known that in six years we will overtake the threshold of 1.5 degrees Celsius set by the Agreement of Paris. We cannot wait too much to phase out from fossil fuels.

https://twitter.com/x/status/1732792399103922480

To this concern the ESA Earth Observation Department is studying how to bridge the gap between the decisions took by the Institutions about the Climate Change issue (threshold of 1.5 degrees Celsius set by the Agreement of Paris for the Temperature Deviation) and the knowledge got about the Climate Change issue thanks to remote sensing.

 

[Raffy.Roma]

https://twitter.com/x/status/1733039813849190471

As I said in my previous posts the contribution of methane to Current Warming is not negligible.
In fact the Special Presidential Envoy for Climate Change John Kerry says that methane (CH4) is responsible for 30% of Current Warming.
Luckily NASA is helping the world to identify methane super emitters from the International Space Station.

 

[Raffy.Roma]

https://twitter.com/x/status/1733101054894420288

"Decisions made today have a direct impact on whether or not young people and future generations inherit a world in which they can thrive."

Simon Stiell at COP28
Executive Secretary of the United Nations Framework Convention on Climate Change (UNFCCC)

 

[Raffy.Roma]

https://twitter.com/x/status/1733110980832334284

Speech of Simon Stiell, Executive Secretary of the United Nations Framework Convention on Climate Change (UNFCCC), at COP28.
I invite all TMC Members to watch the video above.

 

[Raffy.Roma]

https://twitter.com/x/status/1733087325729485243

As I said it's widely known that the Temperature Deviation will overtake the threshold of 1.5 degrees Celsius set by the Agreement of Paris in 6 years.
But according to the Met Office, because of Super El Niño 2023 which will continue in 2024, in 2024 the Temperature Deviation may already overtake the above mentioned threshold.
Then in the following years the Temperature Deviation will go again below 1.5 degrees Celsius.

P.S.

The Met Office names the Temperature Deviation as Average Global Temperature because as I said in a previous post the Temperature Deviation is calculated by averaging the Temperatures over the whole year. Actually the Temperatures are averaged not only over the whole year but also over the whole Earth Surface. So the Temperature Deviation is the result of a double integration divided by the whole year and the Earth Surface.

 

[eevee-fan]

Putin will seek another term as Russian president, aiming to extend his rule of over two decades

Putin has moved to prolong his repressive and unyielding grip on Russia for at least another six years.

apnews.com

Looks like Putin wants to help the world transition to a cleaner world by 2030. He's already done so much in the last couple years. LOL

 

[mspohr]

https://www.nytimes.com/2023/12/08/climate/forests-trees-climate-change.html?unlocked_article_code=1.EU0.1Hcc.ibXOKssS3Bdp&smid=nytcore-android-share

How Much Can Forests Fight Climate Change? A Sensor in Space Has Answers. https://www.nytimes.com/2023/12/08/....1Hcc.ibXOKssS3Bdp&smid=nytcore-android-share

In the past two decades, according to the research, protected areas around the world have helped stop deforestation and kept as much as a year’s worth of fossil fuel emissions from being released into the atmosphere.

People are eager to take whatever is left, like gold and timber,” he said. “It’s hard to get people to let go of something that’s making them so much money.” But according to the recent study, the Tapajós is still one of the world’s forests that is most successful at avoiding carbon emissions. Comparing the reserve to areas that were similar two decades ago but were never officially protected, researchers concluded that if the Tapajós had been wiped out, additional carbon equivalent to the amount produced by 900,000 Americans would have ended up in the atmosphere each year.

Then, in 2018, NASA started a mission called the Global Ecosystem Dynamics Investigation (or GEDI, pronounced like the order of knights in “Star Wars”) that deployed a sensor in space with the power to make precise 3-D measurements of the vegetation below.

 

[Raffy.Roma]

https://www.nytimes.com/2023/12/08/climate/forests-trees-climate-change.html?unlocked_article_code=1.EU0.1Hcc.ibXOKssS3Bdp&smid=nytcore-android-share

How Much Can Forests Fight Climate Change? A Sensor in Space Has Answers. https://www.nytimes.com/2023/12/08/....1Hcc.ibXOKssS3Bdp&smid=nytcore-android-share

In the past two decades, according to the research, protected areas around the world have helped stop deforestation and kept as much as a year’s worth of fossil fuel emissions from being released into the atmosphere.

People are eager to take whatever is left, like gold and timber,” he said. “It’s hard to get people to let go of something that’s making them so much money.” But according to the recent study, the Tapajós is still one of the world’s forests that is most successful at avoiding carbon emissions. Comparing the reserve to areas that were similar two decades ago but were never officially protected, researchers concluded that if the Tapajós had been wiped out, additional carbon equivalent to the amount produced by 900,000 Americans would have ended up in the atmosphere each year.

Then, in 2018, NASA started a mission called the Global Ecosystem Dynamics Investigation (or GEDI, pronounced like the order of knights in “Star Wars”) that deployed a sensor in space with the power to make precise 3-D measurements of the vegetation below.

GEDI

Global Ecosystem Dynamics Investigation

www.earthdata.nasa.gov

In this link the Global Ecosystem Dynamics Investigation (GEDI) is described in detail.
In particular by accurately measuring forests in 3D, GEDI data play an important role in understanding the amounts of biomass and carbon forests store which is important to understand Earth’s Carbon Cycle.

 

[mspohr]

A new 66 million-year history of carbon dioxide offers little comfort for today

A massive new review of ancient atmospheric carbon-dioxide levels and corresponding temperatures lays out a daunting picture of where the Earth's climate may be headed. The study covers geologic records spanning the past 66 million years, putting present-day concentrations into context with deep...

phys.org

"Regardless of exactly how many degrees the temperature changes, it's clear we have already brought the planet into a range of conditions never seen by our species," said study co-author Gabriel Bowen, a professor at the University of Utah. "It should make us stop and question what is the right path forward."

 

[Raffy.Roma]

https://twitter.com/x/status/1733220441412526470

South Australia went from 1% renewables in 2007 to 68% in just over 15 years. It's on track for 100% renewable energy by 2030.
I invite all TMC Members to watch the video above.

We have the solutions. Implement them.

 

[Raffy.Roma]

https://twitter.com/x/status/1733136737797329348

The Carbon Monitoring done by the ESA Earth Observation Department found out that Brasil was a net carbon sink rather than a net carbon source as it was estimated.
Carbon Emissions of each Country have to be accurately checked if we want to meet the specification of 1.5 degrees Celsius set by the Agreement of Paris for the Temperature Deviation.

 

[Raffy.Roma]

https://twitter.com/x/status/1733394500205125926

At COP28 the Special Presidential Envoy for Climate John Kerry is speeding up the decarbonization of heavy industry.
This is the way to go!

 

[Raffy.Roma]

https://twitter.com/x/status/1733129119276138885

ESA is developing global data records to help characterise the climate and inform decision making Institutions about the Climate Change issue.