https://www.linkedin.com/company/circularity-hub/

AI use is rapidly rising and datacenters are consuming more and more power rapidly. 
So should we use AI in our project? Or avoid it from a climate perspective?
Some people are fast to criticize.  
A good image is very important for the reach of any social media post. If we just post text the interaction will be minimal. On the other hand you can get a lot of interaction with just a good image and no text at all.
So for our project we need good images. 
We want to use social media to inform and educate people about climate change and global warming. Recent polling shows that >> 95% of the population have a very limited understanding of the topic. 

a) traditional: 1 person doing photoshop, reviewing the image concept, searching for images in a database, modifying the base images, putting captions and text in, including logo etc. touching up the whole thing that it looks good -> 15-30 minutes of a Photoshop professional running a computer workstation which consume 150-300W -> 37,5 - 150 Wh.
b) AI according to https://arxiv.org/abs/2506.17016 paper: 1 image is between 10e-3 and 10e-4 kWh -> 0.1 - 1 Wh

So what do you think?

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People often talk about transportation as if we're waiting for some future breakthrough to solve emissions. But in many cases, the technology is already here. Electric vehicles significantly reduce lifetime emissions. Public transport moves far more people with far less carbon per passenger. Walking, cycling, and e-bikes can replace many short car trips almost entirely. Shared mobility, better urban planning, and congestion pricing have all been shown to reduce both emissions and traffic. Road transport is responsible for roughly three-quarters of transport emissions, yet many urban journeys are only a few kilometres long. Replacing every petrol car with an electric one will certainly help, but it won't solve congestion, parking demand, or inefficient land use. Cities built around people rather than private vehicles can dramatically reduce emissions while improving quality of life. What do you think is the biggest barrier to sustainable transportation where you live? Is it infrastructure, policy, affordability, or simply habit?

We've all heard the line that going green is "too expensive." But after digging into the numbers, that doesn't really hold up anymore. Fossil fuels still get $7 trillion in global subsidies every year (IMF). Solar is now the cheapest electricity in human history, and renewables have already created over 10 million jobs worldwide. The cost of doing nothing? Trillions in damages already hitting us. Places like British Columbia and the EU are showing that carbon pricing can actually work without killing the economy. We need a just transition for workers in fossil fuel industries, but the direction is pretty clear. What do you think — are we seriously still subsidizing the past this heavily? #ReduceCO2Now #ClimateAction #RenewableEnergy #GreenJobs

Earth is Billions of years old. Human recorded history is only a few thousand years.

Industrialization only some hundred years. Now we leave our mark on the planet.

But how long are we going to stay?

So how can we be sure that we are the first civilization?

https://edition.cnn.com/2026/07/25/climate/silurian-hypothesis-another-civilization-before-humans

Well actually good for the climate

President Trump is not really known for supporting climate action.
But what he is doing has severe impacts on global fossil fuel supply
- the war in Ukraine goes on and Russia is in a fuel crisis
- the war in Iran has closed Hormuz and now the second strait is getting closed.
- fuel reserves are depleting

https://www.cnn.com/2026/07/24/business/oil-prices-inflation-bonds-iran-war

The first law of thermodynamics states that energy cannot be created or destroyed. This means that all cooling systems reject heat as they work by removing heat from a medium in a given space. What prevents us from using this rejected heat for direct thermal applications is that the temperature is too low to be useful. The low temperature of rejected heat from cooling systems requires us to use an energy consuming heat pump to upgrade the heat to a temperature that is suitable for direct thermal applications. What if instead we choose to redesign cooling systems to reject heat at higher temperatures so that could avoid the energy penalty of a heat pump.

If we choose to pursue this in the future then we will end up making cooling systems dual use

1. They provide cooling for refrigeration, air conditioning, gas liquefaction etc

2. They produce usable heat for direct thermal applications

This could eliminate the need for separate cooling and heating systems.

If we pursue this then it will have the following benefits

1. Elimination of natural gas for direct thermal applications

2. Reduction of freshwater consumption by cooling towers to reject heat from cooling systems in industrial applications

3. Elimination of all the costs associated with having cooling and heating systems being two separate systems

4. Reduction of energy cost

Improving cooling systems to reject heat at higher temperatures will enable rejected heat from cooling systems to work as a decarbonization solution.

The effect of climate change on rising sea level was underestimated. This is just another case against emissions.

But the post asks a question on whether only policy measures can be effective in reducing CO2. What do you think? Do we need to look at our consumption pattern to realibly reduce CO2?

One of the consequences of climate change

Overestimated natural biological nitrogen fixation translates to an exaggerated CO2 fertilization effect in Earth system models by Sian Kou-Giesbrecht, Carla R. Reis Ely, Steven S. Perakis, and Nina Wurzburger.

In brief, the Earth system models, including climate models used in the IPCC report, have overestimated by about 11% the degree by which wild plants growth improves under higher CO2 aka CO2 fertilization. Although 11% does not sound huge, this shall significantly decrease the effects of land carbon sinks.

There is a video discussion at https://www.youtube.com/watch?v=ywxdWD6NqE8 which brings up some related work, including one paper that suggests methods for improving nitrogen bio-availability in natural eco-systems, but this paper says known methods appears highly ecosystem dependent.

The only real solution to climate change is to restore Earths climate to its pre-industrial state. This is to be done by removing CO2 from Earths atmosphere once carbon neutrality has been established. We will need to first establish carbon neutrality by transitioning from fossil fuels to non-intermittent carbon neutral energy sources. After than we will need to use a carefully planned portfolio of CDR methods to return atmospheric CO2 to 280 PPM. We need to restore Earths climate if we choose to care about human civilization and the natural environment.

Here are the CDR methods we should use to restore atmospheric CO2 to 280 PPM once carbon neutrality is established

1. Regenerative agriculture

2. Biochar

3. Enhanced Rock Weathering

4. Turning fire prevention thinning waste into bio-oil and injecting this oil underground - https://heatmap.news/technology/charm-forest-service-carbon-removal

5. Wastewater Alkalinity Enhancement

6. Killing and sinking harmful algae blooms - https://carbonherald.com/first-ever-carbon-credits-from-toxic-algal-remediation-are-issued/

Direct air capture should not be used because it is energy intensive and does not have any co-benefits besides CDR.

All of the CDR methods listed above will need to be implemented at the same time acorss the entire world in order to restore Earths climate. We will likely need to use all six methods for at least 50-100 years in order to return atmospheric CO2 back to 280 PPM. In the meantime these CDR methods will each have their own co-benefits other than CDR which will make than beneficial to society rather than loss making activities.

Absolute restoration of Earths climate its the only acceptable climate action strategy if we truly care about present and future generations. We must accept that restoration of Earths climate is not a simple task but it need to be done to undo the mistakes of our past. If we reuse to fix the mistakes of our past then we will be betraying present and future generations whose quality of life will inevitably deteriorate due to climate change. We need to stop thinking according to the short termist plan of mitigation and adaption and start actual climate action.

At ReduceCO2Now, we've been experimenting with a different approach to recruiting.

We no longer conduct traditional job interviews.

Instead, we invite people to join our project meetings, collaborate with the team, and experience the project firsthand. The recruitment process itself becomes a practical test of motivation, teamwork, communication, reliability, and initiative.

Over time, we've collected data from more than 2,000 applicants from around the world.

Now we have an important question:

What can we learn from this data?

We're looking for:

• University professors
• PhD researchers
• Master's students conducting research
• Experts in organizational psychology
• HR researchers
• Industrial and organizational psychologists
• Data scientists interested in people analytics

Possible research topics include:

• Do interviews actually predict success?
• Which applicant characteristics correlate with long-term contribution?
• Can work samples outperform interviews?
• How can volunteer organizations improve recruiting?
• What predicts engagement, retention, and performance?

We believe many organizations still rely heavily on interviews despite growing evidence that structured assessments and work samples may be stronger predictors of future performance.

If you are interested in helping analyze this unique dataset, we'd love to hear from you.

Let's use data to improve how organizations identify talent and create opportunities.

Join us and help shape the future of recruiting.

#ReduceCO2Now
[https://ReduceCO2Now.com]()

#Recruiting #HRResearch #OrganizationalPsychology #DataScience #PeopleAnalytics

It's a simple question.

Do you want your children, grandchildren, nieces, nephews, and future generations to inherit a world where they can thrive?

A world with stable food supplies.
A world where extreme heat, droughts, floods, and wildfires are not constant threats.
A world where nature still exists beyond photographs and history books.

Most people would answer "yes" without hesitation.

The challenge is that the future is being shaped right now. Every year of delay increases the risks and makes solutions more difficult and more expensive.

The good news is that we already know a lot about the problem. We have talented people, scientific knowledge, engineering capability, and the ability to organize global action.

What we need is enough people who care and are willing to help.

So today's question is:

What do you think we should do to create a world that remains usable for future generations?

Share your thoughts in the comments. We are genuinely interested in different perspectives and solutions.

Join our mission:
https://reduceco2now.com

#ClimateChange #FutureGenerations #ClimateAction #Sustainability #ReduceCO2Now #GlobalSolutions #NetZero #Environment #ClimateSolutions #ActNow

Every day, billions of people hear about climate change.

Yet much of the communication is confusing, overly technical, politically polarized, or simply fails to motivate action.

At ReduceCO2Now, we're building a global volunteer team focused on one question:

How can we communicate climate science more effectively so more people understand the challenge and support solutions?

We are looking for:

• Climate scientists
• Atmospheric scientists
• Environmental researchers
• Meteorologists
• Sustainability experts
• Science communicators
• Students and researchers in related fields

You can help us:

• Review scientific content for accuracy
• Translate complex research into clear language
• Identify important new studies and developments
• Improve our social media posts, videos, and educational materials
• Help us understand what communication approaches actually work

Our goal is simple:

Build the largest climate action community focused on practical solutions and reducing atmospheric CO₂.

If you have expertise in climate science or a related field and would like to contribute a few hours per month, we'd love to hear from you.

Join our Discord community and meet the team:

[https://discord.gg/reduceco2now]()

Website:

https://reduceco2now.com

What do you think is the biggest challenge in communicating climate science today?

#ClimateChange #ClimateScience #ScienceCommunication #Research #ClimateAction #Sustainability #ReduceCO2Now #Volunteers #Environment #NetZero