Across the Midwest, an ‘unlikely alliance’ forms to stop carbon pipelines

Read the full story at Grist.

Farmers, tribes, and environmentalists have rallied against the potential use of eminent domain to build the Midwest Carbon Express.

Kansas Geological Survey receives grant to study critical minerals mining potential in region

Read the full story from the University of Kansas.

The Kansas Geological Survey (KGS) at the University of Kansas has been awarded $1.5 million for a two-year project to study the feasibility of recovering minerals critical to advanced and defense manufacturing as well as the clean energy industry from coal deposits, associated rock layers and legacy mining wastes found in Kansas and neighboring states. Critical minerals are defined as raw materials that are vital for the economic or national security and come predominantly from foreign sources that are prone to disruption.

Photosynthesis-inspired process makes commodity chemicals

Read the full story from Northwestern University.

Northwestern University chemists have taken inspiration from plants to revolutionize the way an important industrial chemical is made.

In a first for the field, the Northwestern team used light and water to convert acetylene into ethylene, a widely used, highly valuable chemical that is a key ingredient in plastics.

While this conversion typically requires high temperatures and pressures, flammable hydrogen and expensive metals to drive the reaction, Northwestern’s photosynthesis-like process is much less expensive and less energy intensive. Not only is the new process environmentally friendly, it also works incredibly well — successfully converting nearly 100% of acetylene into ethylene. 

Tetra Pak talks ‘industry first’ fibre-based barrier: ‘Our aim is to develop the world’s most sustainable food package’

Read the full story at Beverage Daily.

Tetra Pak is developing a fibre-based barrier to replace the aluminium layer currently needed in food and beverage packaging like juice boxes and milk cartons. We caught up with Tetra Pak’s Davide Braghiroli, Product Director Packaging Materials and Alternative Barriers, to learn more about why this ‘industry first’ is a milestone in the journey towards carbon-neutral packaging.

New algae-based cement garners attention from AEC industry, Microsoft

Read the full story at Construction Dive.

Algae is not just some stuff floating around in your fish tank or on pond rocks — it’s also a key component of a new zero-carbon cement mixture, according to a June 6 press release. Boulder, Colorado-based zero-carbon research company Prometheus Materials is using algae to create a greener binding agent, according to the company.

The mixture was developed under a Department of Defense grant by a team of scientists and engineers at the University of Colorado Boulder. Prometheus Materials CEO Loren Burnett said the mixture will be used to construct a data center but declined to disclose the client or location.

Prometheus Materials championed the technology after announcing the close of an $8 million Series A funding round led by Sofinnova Partners, a life sciences venture capital firm based in Paris, London and Milan. Additional participants included the Microsoft Climate Innovation Fund and architecture and design firm Skidmore, Owings & Merrill.

Keeping carbon in the ground: how some farmers grow plants to fight climate change

Read the full story from St. Louis NPR.

The agriculture industry accounts for 10% of total U.S. greenhouse gas emissions, a big driver of climate change. Some farmers, like Bishop, are turning to an inexpensive solution to capture carbon dioxide from the atmosphere: cover crops.

Integration leads to leap in tech for forest inventory, management

Read the full story from Purdue University.

Through integration of aerial and ground-based mobile mapping sensors and systems, a team of Purdue digital forestry researchers has used advanced technology to locate, count and measure over a thousand trees in a matter of hours.

What the city of Rotterdam can teach us about the power of green roofs

Read the full story at NextCity.

Green roofs are an undertapped tool in combatting urban heat islands, but all too often, the low-income communities who could benefit the most are left out. Here are lessons from one Dutch city on building rooftop spaces that benefit all.

A new farming proposal to reduce carbon emissions involves a lot of trust – and a lot of uncertainty


by Ralph Sims, Massey University

After decades of avoiding inclusion in the Emissions Trading Scheme (ETS), New Zealand’s primary production sector has begrudgingly acknowledged that reducing on-farm emissions of greenhouse gases is an imperative.

Charged by the government with developing a pricing mechanism and strategy as an acceptable alternative to joining the ETS in 2025 under the Climate Change Response (Zero Carbon) Amendment Act, the sector finally released its proposal earlier this month.

Called He Waka Eke Noa, the partnership involves Federated Farmers, Dairy NZ, Sheep and Beef NZ, Horticulture NZ, the Foundation for Arable Research and the Federation of Māori Authorities.

Their recommendations have now been submitted to the government, which has until the end of this year to consider its options. However, numerous uncertainties surround the scheme, which will need to be addressed if it’s to work properly.

Farm emissions still rising

Since opposing a previous Labour government’s so-called “fart tax” in 2003, many farmers and their representative organisations have resisted inclusion in the ETS while also calling for government assistance to help cope with the impacts of climate change.

In 2015, Federated Farmers claimed voluntary levies had reduced emissions per unit of meat and milk produced by 1.3% a year since 1990 (achieving similar objectives to those of the loathed “fart tax”).

Regardless of these industry and government initiatives, however, annual agricultural emissions have risen 15%, from 34.1 million tonnes of carbon dioxide equivalent (emissions of all greenhouse gas added together) in 1990 to 39.4 million tonnes in 2020 (the latest available data) with no signs of decline.

He Waka Eke Noa recommends all agriculture and horticulture businesses above a certain size should be registered and encouraged to calculate their annual emissions. This will include both short-lived biogenic methane from ruminants and long-lived nitrous oxide from soils, as well as carbon dioxide from fertiliser manufacture (though fossil fuel emissions aren’t included).

A split-gas levy will then be charged, but at a much lower price per tonne than all other sectors are being charged under the ETS. The levy would increase each year, with its price determined by a “systems oversight board”.

Typically the annual levy, as proposed for a large dairy, sheep or beef farm, could exceed NZ$30,000, whereas it might be only $100 for an orchard, based on synthetic fertiliser use.

Fossil fuel inputs are excluded from the partnership, reducing incentives for improving efficiencies. Shutterstock

Doubts and uncertainties

In order to reduce their annual emissions and hence the levy paid, the intention is that farm businesses will have an incentive to use carbon mitigation technologies and introduce forest sinks on their property.

Fossil fuel energy inputs are already covered under the ETS so have been excluded. Unfortunately, this prohibits any incentives being applied for reducing diesel consumption by improving the efficiency of machinery, displacing coal and gas used for heating, or even generating renewable electricity from solar, wind, micro-hydro, crop residues or animal waste resources available on the farm.

He Waka Eke Noa analysis points to a reduction of agricultural emissions of just a few percent by 2030 from both the uptake of new technologies and farm forest sequestration.

Assumed total administration costs of around $120 million to $130 million will be necessary to achieve an annual emissions reduction of about two million tonnes of carbon dioxide equivalent by 2030 if successful. Such an annual reduction should be ongoing, although the levy prices charged are yet to be determined.

Therefore the overall cost measured in terms of dollars per tonne of carbon dioxide avoided, and the revenue to be obtained from the levy for investment in research and development, are not known.

There are numerous other uncertainties. What percentage of farm businesses will register, calculate their emissions and then dutifully pay the levy? What happens to those who don’t wish to take part? Who will monitor the accuracy of their annual submissions and using what methods?

It has been acknowledged that much trust in the farming community will be involved.

A 2003 protest in Auckland against the government’s proposed ‘fart tax’. Getty Images

Unanswered questions

Furthermore, what happens when no more suitable, low-grade land is available for forest sequestration? Planting trees can only be a short-term measure to buy time before having to reduce domestic carbon emissions more stringently.

Under the ETS, the minimum land area for registering a forest sink is one hectare, so the carbon uptake can be measured and monitored. How will numerous small areas of trees on thousands of farms be monitored, and future carbon loss from harvesting, storm damage or fire accounted for?

Areas of mature indigenous forest are in carbon balance so they cannot sequester more carbon. However, if the trees have been damaged by stock or pests whose removal allows some regrowth, how will this be measured in practice?

Perhaps the main question to ask is, given the relatively low prices likely to be applied per tonne of emissions, how many mitigation technologies will prove economic to implement?

For example, if the 2030 levy price on methane is $15 per tonne of carbon dioxide equivalent, whereas the cost of mitigation strategies (such as using seaweed additives in cow feed) comes in at $20, then why would a dairy farmer bother?

‘Dead rats’ to swallow

Ultimately for a farm business it will be a balancing act between costs and achieving emission reduction goals. As the Climate Change Commissioner has said:

Agricultural emissions pricing needs to achieve emissions reductions – but if implemented poorly it also has the potential to create financial hardship for farmers as they transition to low emissions.

And in the words of the president of Federated Farmers:

Like all of these types of agreements with many parties involved, there’s always going to be a couple of dead rats you have to swallow.

So whether the ministers of climate change and agriculture will swallow a dead rat or two and accept these industry recommendations – with all their uncertainties and lack of high ambition – remains to be seen.

Or will the primary sector be made to join the ETS after all? If so, the fart tax might have been a better outcome for farmers in the first place.

Ralph Sims, Emeritus Professor, Energy and Climate Mitigation, Massey University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

A new satellite tool shows you how the planet’s landscape changes day by day

Read the full story at Smithsonian Magazine.

In August 2021, as the Caldor Fire burned more than 200,000 acres in northern California, satellites captured the dramatic changes to the landscape in real-time.

That satellite data fed into a new Google tool, called Dynamic World, which recognized that an area once covered by trees had been reduced to shrub and scrub. In the days after the fire, Dynamic World’s color-coded map of the region transformed from green, where trees had grown in large enough numbers to be seen from space, to yellow, indicating a transformation to low scrub, showing the devastating outcome of the natural disaster on the land itself.