Ralf Steffens
@ralfsteffens.bsky.social
CTO Carbon Drawdown Initiative
Tirewear- yes, but next to no break dust due to recuperation. And break dust is much more toxic.
July 28, 2025 at 4:16 PM
Tirewear- yes, but next to no break dust due to recuperation. And break dust is much more toxic.
None of them can. Go ask the companies that ran them. 😁
April 11, 2025 at 6:49 AM
None of them can. Go ask the companies that ran them. 😁
We don’t have any. Wrong as the rest of your statement.
April 11, 2025 at 5:03 AM
We don’t have any. Wrong as the rest of your statement.
Die sind nirgendwo in Europa heimisch.
February 28, 2025 at 5:01 PM
Die sind nirgendwo in Europa heimisch.
Most of the ERW companies focus on deploying in agricultural settings. So there is no competition for land use but a lot of co-benefits for farmers as the used rock dust releases nutrients and corrects soil pH while weathering. So there is no need for liming which emits loads of CO2.
November 8, 2023 at 5:58 AM
Most of the ERW companies focus on deploying in agricultural settings. So there is no competition for land use but a lot of co-benefits for farmers as the used rock dust releases nutrients and corrects soil pH while weathering. So there is no need for liming which emits loads of CO2.
No. We can’t outplant the climate crisis.
November 8, 2023 at 5:54 AM
No. We can’t outplant the climate crisis.
Hier kann man sich anschauen, wie sich die klimatischen Bedingungen der eigenen Stadt entwickeln werden. Meine Stadt hat 2031 das Klima von Lyon heute und 2060 das von San Marino…
www.umweltbundesamt.de/klimatische-...
www.umweltbundesamt.de/klimatische-...
Klimatische Zwillingsstädte in Europa
Eine Analyse von Klimadaten zeigt, dass sich die Klimate aller Regionen in Deutschland bereits verschoben haben, so dass viele heute ein Klima aufweisen, das vor 50 Jahren 100 bis 600 km weiter im
www.umweltbundesamt.de
October 24, 2023 at 5:55 PM
Hier kann man sich anschauen, wie sich die klimatischen Bedingungen der eigenen Stadt entwickeln werden. Meine Stadt hat 2031 das Klima von Lyon heute und 2060 das von San Marino…
www.umweltbundesamt.de/klimatische-...
www.umweltbundesamt.de/klimatische-...
get back into the atmosphere without putting energy into it. Forest are good for a lot of things, but they are no good carbon sinks. The world has brought down its CO2 levels before there was a single cell doing photosynthesis on its surface or in its water bodies.
October 13, 2023 at 11:42 AM
get back into the atmosphere without putting energy into it. Forest are good for a lot of things, but they are no good carbon sinks. The world has brought down its CO2 levels before there was a single cell doing photosynthesis on its surface or in its water bodies.
You are missing a big point here: we put already more fossil C into the atmosphere than there is organic C in all plants and animals „stored“ on this planet. With af-/reforestation we would have to double what’s already here. The only safe way is to store C on a lower energy level so it does not 1/2
October 13, 2023 at 11:39 AM
You are missing a big point here: we put already more fossil C into the atmosphere than there is organic C in all plants and animals „stored“ on this planet. With af-/reforestation we would have to double what’s already here. The only safe way is to store C on a lower energy level so it does not 1/2
Everything that catches CO2 out of the ambient air and locks it away permanently (500 years +). For obvious reasons I don’t believe in trees to do that safely. We are working on enhanced rock weathering on agricultural fields, but there is no silver bullet. We will need a big portfolio of solutions.
October 12, 2023 at 8:30 PM
Everything that catches CO2 out of the ambient air and locks it away permanently (500 years +). For obvious reasons I don’t believe in trees to do that safely. We are working on enhanced rock weathering on agricultural fields, but there is no silver bullet. We will need a big portfolio of solutions.
Agreed. But we still have to build up and scale all safe technologies now in order to have them up and running when they later actually can contribute a significant part of lowering co2 levels.
October 12, 2023 at 7:25 AM
Agreed. But we still have to build up and scale all safe technologies now in order to have them up and running when they later actually can contribute a significant part of lowering co2 levels.
We - by definition - geoengineered intensively since we started dumping fossil C into the atmosphere, so that went horribly wrong. But we have to clean up the mess (after we decarbonised as fast and as much as we possibly can) afterwards. ➡️ negative emissions.
October 12, 2023 at 6:04 AM
We - by definition - geoengineered intensively since we started dumping fossil C into the atmosphere, so that went horribly wrong. But we have to clean up the mess (after we decarbonised as fast and as much as we possibly can) afterwards. ➡️ negative emissions.