Filed under: Climate & Geoengineering
Climate policy, carbon markets and the proposals to engineer the climate, from solar shades to ocean iron.
Ocean iron fertilisation revisited: from Planktos to the new marine carbon removal
Iron dumping promised cheap carbon storage and delivered scandals and a treaty fix. Now ocean carbon removal is back, with old governance questions.
Beware the biomass economy: pellets, jet fuel and the carbon-neutral claim
The bioeconomy swaps fossil carbon for plant carbon. The biomass demand that implies, who controls supply, and whether burning it is carbon-neutral.
Canada's biofuels law on trial: Bill C-33 and the warnings of 2008
In June 2008, mid food crisis, Canada's Senate passed a law to require biofuel blending. How did the critics' warnings hold up?
From Durban to Baku: the long life of 'climate apartheid'
Critics called the 2011 Durban climate deal 'climate apartheid'. The deal led to Paris, the phrase reached the UN. Who carries the risk in 2025?
Solar geoengineering without the hype: questions and answers
Stratospheric aerosols and cloud brightening explained, why 2024's experiments were halted, and the fight over who gets to decide.
The true colors of the green economy: from Rio+20 to rainforest credits
In 2011 critics warned the 'green economy' meant putting a price on nature. What followed: natural capital, offsets, nature credits, and who gets paid.
Biofuels and transgenics: the tortilla, the tank and who pays
Mexico's 2007 tortilla crisis was an early warning. How the biofuel push collided with food prices, how crops were bent toward fuel, and who pays.
Climate technology transfer: for Northern business or Southern countries?
At Copenhagen, technology transfer was the 'easy' climate issue. Fifteen years on, the patent fight is parked and the map of who makes what has flipped.
Carbon credits from a plankton bloom: how the Planktos business model came apart
In 2007 a start-up planned to seed the Pacific with iron and sell the carbon as offsets. Why the business model failed, and what it still teaches.
The risky road to Rio+20, and what the summit actually left behind
Critics warned in 2011 that Rio+20 would hand nature to the market. What did the 2012 summit really produce, and how has its green economy aged?
