Green hydrogen has been an expensive fuel, so far. Producing it by solar or wind energy (and electrolysis) is now three to four times as expensive as producing ‘grey’ hydrogen from natural gas, releasing CO2. And there are the technical … Read more
Renewable energy, mainly solar, wind and hydro, is going to take over global energy supply. But is its development fast enough to prevent global warming beyond 1.5oC? Global annual renewable energy capacity additions are on a record track. In 2023, … Read more
Solar energy continues to astonish the world. In 2024, new developments will ensure continued growth; both in generation and in storage. Largest source of electricity generation Present developments indicate that in 2025, renewables will become the largest source of electricity … Read more
It isn’t recognized generally yet, but the combination of solar, wind and batteries can supply the whole world with electricity. Writes RethinkX in its latest newsletter. This is happening already in many parts of the world, part of the year. … Read more
The Conversation informed us about the negotiations on a global pact on plastic. A penultimate round of negotiations recently ended in Ottawa – the last stage will take place later in November in South Korea. Countries agreed that they should … Read more
Knowable Magazine ran an interesting article by Nicola Jones on a forthcoming treaty on plastic pollution. This would tackle the vast amounts of plastic waste discharged to the environment. It is intended to be concluded in the fall of 2024. … Read more
Pressure on the electricity grid is rising all the time, because of increasing local production: solar and wind energy. An increasing number of companies needs to wait for a connection. But there is a solution: a local network comprising solar … Read more
Is the Earth entering a new and more dangerous phase in climate change? Where global heating will accelerate instead of slow down? This may be the case, says Jack Marley in The Conversation. For indicators like global heating, sea-level rise, … Read more
Carbon dioxide is a powerful greenhouse gas. But we can put it to good use as well. Putting CO2 to good use may even reduce the burden of preventing its release to the atmosphere. When it comes to useful applications, … Read more
Hydrogen is at our disposal, so it seems, in many colours: black, grey, green, blue, turquoise, purple, aquamarine, pink, red, blue, yellow, orange, white, … [1, 2, 7]. Some colours are relatively new, like pink or purple for hydrogen from … Read more
At the time of writing, COP28 is still underway. There are serious doubts as to whether the conference will be a success. But it has put agriculture on the stage as one of the determining sectors. Yes, we can supply … Read more
After many years of unashamed scepticism, the International Energy Agency finally published a positive report about renewable energy; in their World Energy Outlook 2023. But with a warning: we need to step up in order to restrict global warming to … Read more
Animal husbandry has a major ammonia problem; in the Netherlands, anyway. Cows are held in barns in which urine and faeces are collected together. This is a perfect mix for a hefty ammonia emission. To the detriment of surrounding nature; … Read more
Recently, we argued that we are near ‘peak energy’. Global energy demand has slowed down a lot; it will probably peak within a few years. But solar and wind energy are in the middle of a take-off. What are the … Read more
The growth of solar and wind power has sparked a debate on how much renewable energy the grid can carry. The more solar we add to the grid, the less valuable it becomes. Can we escape from this dilemma and … Read more
Most carbon dioxide emission policies have a weak spot: they forget emissions from embedded carbon, through decay of products made from fossil sources. Often, policy only has an eye on fuel related emissions and does not take into account secondary … Read more
Already in our 2016 energy forecasts, we foresaw a much more favourable development of renewable energy than authoritative organizations: energy companies, the oil industry and international bodies like the IEA. Finally, from 2021 onwards, they start revising upwards their forecasts. … Read more
The 2021 Biennale in Venice introduced a new concept into architecture: the probiotic design. From the 19th century onwards, architects and housewives tried to keep the interior of our buildings as clean and non-biotic as possible. But recent discoveries have … Read more
Last week, the UNESCO building in Paris hosted a conference on putting an end to plastic waste. Long overdue, according to many delegates. Science Magazine proposed to cap global plastics production – and then reduce it step by step, in … Read more
Optimistic messages on renewable energy abound. According to a major scientific article, ‘a greener, healthier, and safer global energy system is also likely to be cheaper’. Much cheaper. But official policies and official forecasts still stay on the ‘safe side’. … Read more
The first assessment of solar and wind power performance over 2022 has been published, by independent climate think tank Ember. Both forms of energy production did very well. Together, they accounted for 12% of global electricity production, as opposed to … Read more
The site Nature Communications ran a remarkable article about wax worms that break down polyethylene. We read it through The Guardian and the Dutch site change.inc. But, we asked ourselves: isn’t polyethylene completely inert? At most to be dispersed in … Read more
We are now three decades into political and research efforts to stop climate change. But we are still in the era of rapid global emissions growth. Since 1990, we emitted more CO2 into the atmosphere than ever before. What is … Read more
So far, many analysts expected high-renewable energy scenarios to be beneficial to the global climate; but maybe a bit expensive as well. A recent study argues that this too pessimistic. The green energy transition will in fact be much cheaper … Read more
Solid state batteries are going to provide a new boost to electric driving. They are in full development; but solid state battery-equipped cars will probably not hit the market before 2025. These batteries will have more capacity than lithium-ion batteries … Read more
George Monbiot published a new book, Regenesis: Feeding the World Without Devouring the Planet. He is the much acclaimed and (to some) controversial author who criticizes modern agricultural practices. In Regenesis, he develops a vision on what sustainable agriculture could … Read more
How do we get rid of the growing amount of plastic waste in the world? On a macro scale, The Ocean Cleanup tries to accomplish that: by removing plastic from the oceans. But we will also have to try to … Read more
In the Netherlands, Amsterdam suffers from congestion on the grid. As do other locations. Sustainable energy projects are stalled because of it. New business projects suffer the same fate. The solution, according to grid companies? More capacity on the grid! … Read more
There are many reasons for use of more solar energy. Most importantly, the climate. Moreover, the world needs to scale down its use of gas and oil quickly. More solar power? We can do that. Even in a densely populated … Read more
Methane is a very powerful greenhouse gas. It has 82.5 times more warming potential than CO2 over a 20-year timespan. But fortunately, it lives shortly in the atmosphere: it degrades in 12 years. Therefore, methane mitigation is a key opportunity … Read more
A shift towards a plant-based diet could buy humanity a much needed pause in the growth of greenhouse gas emissions. The plant-based diet and global warming The effects of a phase-out of a meat-based diet would have a major effect … Read more
Many proponents of sustainability adhere to the idea that the main path to sustainability lies in high-tech solutions. Like electric cars instead of the old ones, that guzzle fossil fuels. We even wrote a book on this ‘green growth’. But … Read more
Almost three years ago, in 2019, we voiced our concern over increased methane emissions. Although then we saw a bright side to this problem: unlike CO2 emissions, methane (CH4) emissions can easily be tracked down and repaired. But three years … Read more
Gut feeling says plastics are bad for the environment – but are the alternatives really better? Originally published in Renewable Carbon News of the nova-Institute. Plastics, an environmental problem? In public perception, plastic has become a serious environmental problem. We … Read more
Biological crop protection is on the rise. In many respects, biologicals are better than chemicals. Generally, they carry low risk for human health and for the environment. Not necessarily harmless however. And they may not protect crops as effectively as … Read more
Plastic pollution is everywhere nowadays. Even in the remotest places on earth. A problem that we need to address urgently. But nature may be working hard to help us solve the problem. By evolving microorganisms that eat this pollution. Researchers … Read more
Solar energy is making a breakthrough. Solar panels become cheaper all the time. Therefore, structural problems, like their diluted electricity production, become less important. Even in a country with little space like the Netherlands. But how will solar energy be … Read more
For decades, the Rocky Mountain Institute (RMI) spread the message ‘that the energy transition will happen faster and be less costly than many people think’; in the words of CEO Jules Kortenhorst. And now, their predictions are becoming reality. In … Read more
In the past few decades, solar energy (PV) has grown a lot; the number of applications has much increased and production has become much more large-scale. Costs have taken a dive, and dramatically so. The ambitions for solar energy are … Read more
The Earth heats up; and in this process, towns are among the areas most hit. Buildings and streets tend to store incoming radiation. Towns urgently need to be turned greener, if only with the goal to keep them liveable. Green … Read more
Why are the ‘green’ areas in our cities often so uniform? Why are they ‘blandscaped’, to create virtually uniform green spaces that are devoid of local character or distinctiveness? Just attractive to look and easy to manage, but devoid of … Read more
Around the world, meat consumption is on the rise. People eat more meat as they become more affluent. But meat alternatives are becoming popular. They are fashionable; and their environmental footprint is much lower than that of meat. Moreover, their … Read more
This month, before publication of their NZE2050 scenario, the International Energy Agency considerably upped its forecast for solar and wind energy. Even after the major upward revision already done in its World Energy Outlook 2020. Solar PV is now ‘the … Read more
In an unprecedented move, the International Energy Agency (IEA) published its NZE2050 scenario this month: towards net zero carbon emissions in 2050. Required for a climate strategy that limits the rise of global temperatures to 1.5oC. NZE2050 marks a major … Read more
Costs of producing renewable energy keep coming down; and technologies for cheap energy storage keep evolving. Therefore, the eternal problems with solar and wind energy appear to be more and more outdated (‘what to do if the sun doesn’t shine … Read more
The most important low-carbon energy sources, renewables and nuclear, compete for investment funds. But if we are not mistaken, the dice have already been thrown in this contest of renewables versus nuclear. Renewables have won. Although it might still take … Read more
A recent article in Nature Energy confirms what we might have surmised already: renewable sources are much better at creating a low-carbon energy future than nuclear power. They do need quite another electricity infrastructure. But grid companies quickly learn how … Read more
Suddenly, articles on plastic recycling pop up everywhere. Spurred on the one hand by continued growth in plastics production; and on the other hand by the ever growing problem of plastic waste. Scientists foresee that in 2050, there will be … Read more
Researchers at Monash University in Melbourne, Australia, have developed a new technology for drinking-water production. They use metal-organic frameworks (MOFs) that remove ions dissolved in salt or brackish water, producing potable water. The MOFs can be regenerated quickly, under the … Read more
The Dutch Wadden islands aimed to attain energy autarky in 2020. They fail to reach that target. For in order to do this, energy production and consumption don’t just need to match over a year; they also need to match … Read more