Carbon

Planting trees in grasslands won’t save the planet – rather protect and restore forests

Retrieved on: 
Tuesday, April 23, 2024

Many of these tree planting projects target Africa’s rangelands (open grasslands or shrublands used by livestock and wild animals).

Key Points: 
  • Many of these tree planting projects target Africa’s rangelands (open grasslands or shrublands used by livestock and wild animals).
  • Our goal is to protect and promote rangelands that combat desertification and support economic
    growth, resilient livelihoods and the sustainable development of pastoralism.
  • In pursuit of this goal, we reviewed all the scientific studies we could find on the effects of planting trees in rangelands.

Why rangelands matter

  • Rangelands provide critical ecosystem services, but these are lost when open grassy vegetation is converted to forest or plantation.
  • Many rangelands are too dry, steep or rocky to grow crops but are suited for livestock grazing to produce meat, milk and fibres such as wool.
  • Read more:
    When tree planting actually damages ecosystems

    The ecosystem services provided by rangelands are generally overlooked while those provided by forests and trees are assumed to be far superior.

Afforestation in the wrong places often fails

  • This is a suitable form of land use for those environments, which would be harmed by planting trees.
  • Tree planting projects are commonly portrayed as reforestation, which implies that the target areas have lost their original forest cover.
  • In fact, planting trees in rangelands that naturally have low tree cover is afforestation.
  • This often fails because they don’t have enough rainfall throughout the year to support high tree cover.

Afforestation can be damaging to people, water and climate

  • Despite being portrayed as supporting local economic development and ecosystem restoration, afforestation projects often exclude existing land users and limit their access to land and resources.
  • Rangeland afforestation also reduces streamflow and lowers water tables as trees use much more water than grasses.

What is a better solution?

  • If these initiatives were focused on degraded forest instead, three-quarters of degraded forests could be restored.
  • In rangelands, the best approach is to protect and enhance their existing carbon stores rather than replacing them with forests or plantations.


Susanne Vetter does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

Don’t blame Dubai’s freak rain on cloud seeding – the storm was far too big to be human-made

Retrieved on: 
Friday, April 19, 2024

Thousands of meters below, a smaller plane would be threading through the storm downdrafts measuring the rain.

Key Points: 
  • Thousands of meters below, a smaller plane would be threading through the storm downdrafts measuring the rain.
  • The project I was part of, neatly named Rain (Rain Augmentation in Nelspruit), was a cloud seeding experiment several years in the making.
  • Cloud seeding involves adding tiny particles into a cloud in order to give moisture something to attach to and form droplets.
  • There is no identical cloud with which to compare the outcome of having seeded a particular cloud.

A perfect storm

  • Parts of the Arabian Peninsula received 18 months of rainfall in 24 hours that Tuesday.
  • Being the weather-man in the chat group, I looked at the satellite and the forecast model data.
  • What I saw were the ingredients of a perfect storm.
  • Under these conditions, thunderstorms develop very readily and in this case a special kind of storm, a mesoscale convective system, built and sustained itself for many hours.

Cloud seeding not to blame

  • What surprised me, though, was not the majesty of nature, but an emerging set of reports blaming the ensuing rains on cloud seeding.
  • It turns out the UAE has been running a cloud seeding project, UAE Research Program for Rain Enhancement Science, for several years.
  • The idea, similar to the Rain project I once worked on, is to promote the growth of cloud droplets and thereby rainfall.


Richard Washington receives funding from the Natural Environment Research Council to study climate processes.

Press release - MEPs adopt stricter CO2 emissions targets for trucks and buses

Retrieved on: 
Thursday, April 18, 2024

The regulation, addressing emissions from new trucks, buses and trailers, was endorsed by MEPs with 341 votes in favour, 268 against and 14 abstentions.

Key Points: 
  • The regulation, addressing emissions from new trucks, buses and trailers, was endorsed by MEPs with 341 votes in favour, 268 against and 14 abstentions.
  • CO2 emissions from large trucks (including vocational vehicles, such as garbage trucks, tippers or concrete mixers) and buses will have to be reduced by 45% for the period 2030-2034, 65% for 2035-2039 and 90% as of 2040.
  • By 2030, new urban buses will need to reduce their emissions by 90% and become zero-emission vehicles by 2035.
  • Emissions reduction targets are also set for trailers (7.5%) and semi-trailers (10%), starting from 2030.

Press release - Carbon removals: MEPs adopt a new EU certification scheme

Retrieved on: 
Thursday, April 18, 2024

- Certification framework to boost high-quality carbon removals and counter greenwashing

Key Points: 
  • - Certification framework to boost high-quality carbon removals and counter greenwashing
    - New rules will enable farmers to get paid to remove carbon
    - Public EU registry to ensure transparency
    The law will set up an EU certification framework for carbon removals to boost their uptake and help achieve EU climate neutrality by 2050.
  • Parliament on Wednesday adopted the provisional political agreement with EU countries on a new voluntary certification framework for carbon removals, with 441 votes in favour, 139 against and 41 abstentions.
  • The legislation covers different types of carbon removals, namely permanent carbon storage through industrial technologies, carbon storage in long-lasting products and carbon farming.
  • You can read more about the new rules in the press release after the deal with EU countries.

Could Albanese’s bet on homegrown green industries be the boost our regions deserve?

Retrieved on: 
Thursday, April 18, 2024

In 2022, America launched its mammoth Inflation Reduction Act and the CHIPS and Science Act.

Key Points: 
  • In 2022, America launched its mammoth Inflation Reduction Act and the CHIPS and Science Act.
  • China, of course, moved first, and dominates the market for most clean energy products, from solar panels to wind turbines and batteries.
  • For Australia, efforts to reshore manufacturing and stimulate new industries should focus on supporting and stimulating regions.
  • If they becomes reality, these plans present a rare chance to make our regions into sustainable economic powerhouses.

Boosting the regions

  • The developer could employ locals, and – if efforts to bring back manufacturing pay off – locally made components could be used wherever possible.
  • This is why the proposed Future Made In Australia Act is a very real opportunity to deliver energy justice for our regions and rural communities.
  • Queensland might be a first mover here by legally defining social license and requiring renewable energy developers to engage with communities.
  • Read more:
    Made in America: how Biden's climate package is fuelling the global drive to net zero

Could Australian-made really work?

  • There’s a low chance we will go directly head-to-head with green energy giants such as China.
  • For instance, we’re already one of the world’s top per capita users of solar, and our food exports are highly regarded.
  • Australia has world-leading solar photovoltaic expertise, which we could tap into to create custom-designed agrivoltaics solutions, co-designed with farmers.
  • The timing is good – the World Economic Forum earlier this year called for better financing and development of these types of technologies.
  • Like agrivoltaics, these kinds of inventions offer double benefits – cut carbon emissions, boost farm productivity.

We should use our comparative advantages

  • But what is clear is it represents a real chance for our regional and rural communities to lead the energy transition.
  • And we can do it while uplifting the regional and rural communities which will play home to this transition.


Madeline Taylor is a Clean Energy Council Chloe Munro Scholar, is a Fellow at the Climate Council, and is on the Board of REAlliance,

Crucial building blocks of life on Earth can more easily form in outer space – new research

Retrieved on: 
Thursday, April 18, 2024

Scientists believe life arose in a primordial soup of organic chemicals and biomolecules on the early Earth, eventually leading to actual organisms.

Key Points: 
  • Scientists believe life arose in a primordial soup of organic chemicals and biomolecules on the early Earth, eventually leading to actual organisms.
  • However, these complex molecules are assembled from a variety of small and simple molecules such as amino acids – the so-called building blocks of life.
  • This latest study sheds light on how some of these building blocks might have formed and assembled, and how they ended up on Earth.

Steps to life

  • Peptides can be made up of as little as two amino acids, but also range to hundreds of amino acids.
  • The assemblage of amino acids into peptides is an important step because peptides provide functions such as “catalysing”, or enhancing, reactions that are important to maintaining life.
  • However, despite their potentially important role in the origin of life, it was not so straightforward for peptides to form spontaneously under the environmental conditions on the early Earth.
  • Many of the building blocks of life such as amino acids, lipids and sugars can form in the space environment.
  • Because peptide formation is more efficient in space than on Earth, and because they can accumulate in comets, their impacts on the early Earth might have delivered loads that boosted the steps towards the origin of life on Earth.
  • So what does all this mean for our chances of finding alien life?
  • Once we know that, we’ll have a good idea of how widespread, or not, life might be.


Christian Schroeder does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

How a teenager helped identify a new species of giant marine reptile

Retrieved on: 
Thursday, April 18, 2024

A strange and enormous jawbone was discovered on the English coastline eight years ago, but my team was hesitant to identify it as a new species until more specimens came to light.

Key Points: 
  • A strange and enormous jawbone was discovered on the English coastline eight years ago, but my team was hesitant to identify it as a new species until more specimens came to light.
  • Now, with the discovery of a second giant jawbone several years later, we have named a new species of ichthyosaur, an ancient marine reptile.
  • In 2016, prolific fossil hunter Paul de la Salle, unearthed a giant jawbone on the beach at Lilstock in Somerset.
  • My team, including De la Salle, studied this discovery and published our findings in 2018 in the journal PLOS One.
  • The preservation and fine detail provided new information that also helped us to better reinterpret De la Salle’s original bone.
  • We therefore erected a new genus (taxonomic rank) and species of giant ichthyosaur that we called Ichthyotitan severnensis, meaning “giant fish lizard of the Severn”.

Blue whale-sized giants

  • Using a basic formula called a simple scaling factor, we can estimate that our ichthyosaur was up to 26 metres long, about the size of a blue whale.
  • Comparisons with the same bone in other ichthyosaurs suggests that Ichthyotitan was between 20 and 26 metres in length.
  • We have to be careful with such estimations due to differences among species, such as those with long or short snouts.
  • At 202 million years old, the fossils narrowly predate a global extinction event that eradicated these giants – and marine reptiles would never reach such a size again.

Anyone can make a contribution

  • I asked them whether they would like to join my team to study this fossil and they agreed.
  • Ruby Reynolds is now a published scientist who not only found but also helped to name a gigantic prehistoric reptile.
  • Palaeontology is one of those sciences where anybody can make a significant contribution.


Dean Lomax worked with Paul de la Salle, Marcello Perillo, Justin and Ruby Reynolds and Jimmy Waldron of the Dinosaurs Will Always Be Awesome Museum on the referenced research. He dedicates the work to Paul de la Salle who found the first surangular in 2016.

Scotland is ditching its flagship 2030 climate goal – why legally binding targets really matter

Retrieved on: 
Thursday, April 18, 2024

The target was statutory, meaning it had been set in law in the Emissions Reduction Targets Act of 2019.

Key Points: 
  • The target was statutory, meaning it had been set in law in the Emissions Reduction Targets Act of 2019.
  • Scotland is still subject to the 2030 carbon target for the UK as a whole.
  • The consistent implementation of the existing targets, in other words, is the difference between meeting the Paris objectives and condemning the planet to dangerous climate change.

Legally (but not literally) binding

  • In 2017, Sweden was the first major economy to enact a statutory net zero target.
  • Its net zero target is complemented by a series of intermediate steps: five-yearly carbon budgets, which are also legally binding.
  • Legal scholars have long known that, even though the targets are legally binding, they would be difficult to enforce against an unwilling government.

Governments in the dock

  • The plaintiff was the environmental law charity ClientEarth, which remains dissatisfied with the strategy and returned to court in February 2024.
  • If successful, such a move would be the latest in a series of court cases in which judges have ordered governments to scale up their climate ambitions.
  • The political embarrassment of missing a statutory target, or being subject to a court case, can focus the mind.
  • A review of the UK Climate Change Act found that civil servants were petrified about the threat of a judicial review.
  • Scotland’s decision to abandon its 2030 climate ambition is the most brazen violation of a statutory climate target yet.


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Sam Fankhauser receives funding from the University of Oxford's Strategic Research Fund for Oxford Net Zero and the UK Economic and Social Research Council (ESRC) for the Place-based Climate Action Network (PCAN).

It is industry, not government, that is getting in the way of a ‘just transition’ for oil and gas workers

Retrieved on: 
Thursday, April 18, 2024

Canada’s oil and gas sector is in the throes of profound change driven by shifting consumer demand and global commitments to dramatically lower greenhouse gas (GHG) emissions.

Key Points: 
  • Canada’s oil and gas sector is in the throes of profound change driven by shifting consumer demand and global commitments to dramatically lower greenhouse gas (GHG) emissions.
  • But are industry and politicians sincere in their affection for oil and gas workers?
  • Or, are energy workers merely a convenient vehicle to shield the industry from change that many Canadians believe is inevitable?

Picket lines

  • We found the company used expanding pipeline capacity and Canada’s emission reduction policies to justify its push to force workers to take concessions.
  • The lockout came to an end in June 2020 when Local 594 members ratified an agreement with FCL.

“Just” transition?

  • Just this month federal Conservatives, conservative provincial governments and protesters came out strong against the increase to the Trudeau government’s signature climate policy — the price on carbon.
  • The Liberal government has faced significant backlash against its other climate policies as well, including the oil and gas emissions cap.
  • Conservatives position themselves as the voice of fossil fuel workers, who they cast as victims of carbon pricing and other federal environmental policies.
  • Shuttered factories and their laid-off employees are victims of Liberal anti-oil policies, industry proponents insist.

Questions unanswered

  • Time and again governments, local police and courts advanced the interests of industry over those of unionized workers.
  • Or, will the inevitable winding down of extractive fossil fuel industries lead to acrimonious labour relations and social injustice?
  • The path designed by powerful oil and gas interests is not one that puts workers or communities first.
  • Emily Eaton receives funding from the Social Sciences and Humanities Research Council of Canada.
  • Andrew Stevens receives funding from the Social Sciences and Humanities Research Council and the University of Regina (U of R fund: Unifor Scholar in Labour Relations).

Earth Day: ‘Green muscle memory’ and climate education promote behaviour change

Retrieved on: 
Thursday, April 18, 2024

This year, organizers of Earth Day are calling for widespread climate education as a critical step in the fight against climate change.

Key Points: 
  • This year, organizers of Earth Day are calling for widespread climate education as a critical step in the fight against climate change.
  • A new report, released in time for global attention for Earth Day on April 22, highlights the impact of climate education on promoting behaviour change in the next generation.

How knowledge becomes ingrained

  • Teachers have become increasingly concerned about best practices for supporting their charges as young people express anxiety about environmental futures.
  • Similarly, Finnish researchers use biking as an analogy to describe the process by which knowledge becomes ingrained in people’s memory.
  • The bike model advocates ways of learning that consider knowledge, identity, emotions and world views.
  • More than half of the survey respondents were from Ontario (25 per cent) and Québec (29 per cent).

Challenges with climate education

  • However, inclusion of climate education in formal school curricula has come with its own set of challenges.
  • Educators in Ontario reported a lack of classroom resources as a barrier when integrating climate change education within the curriculum.
  • The United Nations has declared climate education “a critical agent in addressing the issue of climate change” as climate education increases across different settings and for various age groups.

Educators finding ways

  • More and more educators are taking steps to find ways to teach climate education in schools.
  • As an instructor for several undergraduate-level courses, Olsen focuses on equipping budding educators with the skills and knowledge to incorporate climate education in their classrooms.

All aspects of curricula

  • Embedding climate education into all aspects of curricula can take a variety of approaches in and outside of the classroom.
  • Environmental education has been packaged in different forms, including broadening school curricula with inclusion in science, but also subjects including English, math and art.


Preety Sharma is a public health and development consultant. As a freelance journalist, she covers climate change, public health and nutrition. Ayeshah Haque is a Clinical Content Specialist at the Association for Ontario Midwives.