Reposted by Jan-Maarten
De #uitverkoop op het Spui gaat een nieuwe fase in: nu een heel mandje opgeruimde boeken voor slechts € 10,-. Zien we je dadelijk bij Athenaeum?
February 6, 2026 at 12:48 PM
De #uitverkoop op het Spui gaat een nieuwe fase in: nu een heel mandje opgeruimde boeken voor slechts € 10,-. Zien we je dadelijk bij Athenaeum?
Ik vind deze campagne erg belangrijk - doe je ook mee? actie.degoedezaak.org/petitions/st...
Stop de Amerikaanse overname DigiD!
Onze privé-gegevens zijn bij overname door een Amerikaans bedrijf niet veilig!
Dit lijkt ons niet de veilige manier nu president Trump in Amerika aan het roer staat. Dit kan misgaan!
Als de Nederland...
actie.degoedezaak.org
January 22, 2026 at 4:17 PM
Ik vind deze campagne erg belangrijk - doe je ook mee? actie.degoedezaak.org/petitions/st...
Last summer a great many biohackers & other creative folks got together at the Dinacon in Bali. Proceedings of all the wonderful projects that went on there are now available here! -> archive.org/details/dina...
January 20, 2026 at 7:15 PM
Last summer a great many biohackers & other creative folks got together at the Dinacon in Bali. Proceedings of all the wonderful projects that went on there are now available here! -> archive.org/details/dina...
Reposted by Jan-Maarten
Beef has a huge environmental cost. And the only real fix is to consume less of it.
drawdown.org/insights/gre...
drawdown.org/insights/gre...
Greenwashing and denial won’t solve beef’s enormous climate problems
Dive into the world of beef's environmental impact, from deforestation to climate change. Learn about the myths of "eco-friendly" beef and the industry's narratives.
drawdown.org
January 19, 2026 at 9:02 PM
Beef has a huge environmental cost. And the only real fix is to consume less of it.
drawdown.org/insights/gre...
drawdown.org/insights/gre...
Lat walk of '25, hello '26 and happy new year everyone!
January 1, 2026 at 6:54 PM
Lat walk of '25, hello '26 and happy new year everyone!
Reposted by Jan-Maarten
Not all climate “solutions” are created equal. Some actually do more harm than good like some of the top ones here. Bookmark the Drawdown Explorer in case you are ever not sure.
Some proposed climate “solutions” just don’t stack up against an objective, evidence-based perspective.
That’s why the Drawdown Explorer calls these “Not Recommended” climate solutions.
That’s why the Drawdown Explorer calls these “Not Recommended” climate solutions.
December 20, 2025 at 5:36 PM
Not all climate “solutions” are created equal. Some actually do more harm than good like some of the top ones here. Bookmark the Drawdown Explorer in case you are ever not sure.
Reposted by Jan-Maarten
Please help Project Drawdown and our work to deploy science-based climate solutions out into the world.
It sometimes feels impossible to build a better future, but I assure you that it is not. A better future is possible, but only if we choose to pursue it.
It sometimes feels impossible to build a better future, but I assure you that it is not. A better future is possible, but only if we choose to pursue it.
Tomorrow is #GivingTuesday! The spirit of giving is coming alive around the world — and you have the power to lead. When you donate tomorrow, you can DOUBLE your impact with a generous match. Together we can make the impossible possible!
Learn more: 🔗 https://drawdown.donorsupport.co/-/XURKZYNL
Learn more: 🔗 https://drawdown.donorsupport.co/-/XURKZYNL
December 1, 2025 at 8:44 PM
Please help Project Drawdown and our work to deploy science-based climate solutions out into the world.
It sometimes feels impossible to build a better future, but I assure you that it is not. A better future is possible, but only if we choose to pursue it.
It sometimes feels impossible to build a better future, but I assure you that it is not. A better future is possible, but only if we choose to pursue it.
Important 'save the date' announcement! Biohackery fun in Greece April 22-25
November 20, 2025 at 2:26 PM
Important 'save the date' announcement! Biohackery fun in Greece April 22-25
Ik heb gestemd, voor een duurzame, rechtvaardige samenleving
October 29, 2025 at 2:14 PM
Ik heb gestemd, voor een duurzame, rechtvaardige samenleving
Weather stations up & running! The Smart Citizen kit (open source), an Ecowitt station, and 3 different Nutshell eDNA samplers for testing
October 13, 2025 at 2:04 PM
Weather stations up & running! The Smart Citizen kit (open source), an Ecowitt station, and 3 different Nutshell eDNA samplers for testing
@atinygreencell.bsky.social , turns out I am growing a Korean perilla (Perilla frutescens) that is doing a consistent triple whorl, spontaneously. Happy to ship a sample, once shipping between our countries is a go again
October 1, 2025 at 1:20 PM
@atinygreencell.bsky.social , turns out I am growing a Korean perilla (Perilla frutescens) that is doing a consistent triple whorl, spontaneously. Happy to ship a sample, once shipping between our countries is a go again
Aasvlieg en steenhommel-komkommerkruid brunch. Green bluebottle fly and stone bumblebee feeding on borage.
August 31, 2025 at 6:01 PM
Aasvlieg en steenhommel-komkommerkruid brunch. Green bluebottle fly and stone bumblebee feeding on borage.
Nothing but some critters goin about their business
August 30, 2025 at 4:38 PM
Nothing but some critters goin about their business
DNAir sampler works in simulation too! Downward vertical air movement is color coded red. github.com/J4n-M44rt3n/...
August 20, 2025 at 10:47 AM
DNAir sampler works in simulation too! Downward vertical air movement is color coded red. github.com/J4n-M44rt3n/...
Sarah and I went to see the launch of this year's strandbeest, at Scheveningen beach
August 19, 2025 at 8:33 PM
Sarah and I went to see the launch of this year's strandbeest, at Scheveningen beach
Purple glow on a windowsill, I outfitted plant hatchery boxes with led strips today
August 4, 2025 at 8:27 PM
Purple glow on a windowsill, I outfitted plant hatchery boxes with led strips today
Testing a new windtunnel build; vacuum cleaner universal motor, custom fan, zipties. Up to 4 m/s and counting.
July 28, 2025 at 8:19 PM
Testing a new windtunnel build; vacuum cleaner universal motor, custom fan, zipties. Up to 4 m/s and counting.
Bumlebee on lavender, even closer but shakier too
July 27, 2025 at 8:28 PM
Bumlebee on lavender, even closer but shakier too
More bumblebee on lavender
July 27, 2025 at 8:28 PM
More bumblebee on lavender
Bumblebee on lavender
July 27, 2025 at 8:27 PM
Bumblebee on lavender
Squid fishin' fleet, Les, Bali
July 5, 2025 at 3:35 AM
Squid fishin' fleet, Les, Bali
Rhinoceros beetle on our porch last night
June 30, 2025 at 2:12 PM
Rhinoceros beetle on our porch last night
Aardhommel, boomhommel, rozenkever, gele lis met kleine vriendjes
June 4, 2025 at 6:09 PM
Aardhommel, boomhommel, rozenkever, gele lis met kleine vriendjes
Foraging bumble bee, look at those flight muscles!
May 26, 2025 at 8:24 PM
Foraging bumble bee, look at those flight muscles!