When fish farms kill their fish for food some of that food is ground up and fed to other fish as nutrient pellets. It’s well known that current fishing practices are really bad for the environment and that fish farms aren’t good for their local environment. Anything we can do to help reduce the damage done by fish (and eating fish) will make this world a little better.
A new company, NovoNutrients, has created a solution to the fish feed problem by addressing another global issue: too much carbon. The company has a process which takes carbon from factories and feeds it to microbes, which in turn grow to become fish food.
The startup’s process uses carbon dioxide, along with other emissions, to feed microbes that can then become protein for companies that make pellets of food for fish. Those microbes are similar to ones that evolved to live near gas vents in the ocean; the startup arranges them with other species into “microbial factories” that work together to make the whole process more efficient.
The company is also developing new microbes, using synthetic biology, that can produce particular nutrients–vitamins or probiotics, for example–that can also be used as ingredients in feed. All of this will happen in pipes that help the gases dissolve in water, rather than in the large tanks that are used for fermentation in a brewery or some pharmaceutical companies. The pipes can connect directly to a cement plant or other industrial emitter and then into a fishmeal factory next door. Hydrogen, which can be produced through electrolysis of water using solar power, can provide energy for the system.
When it comes to carbon storage you can’t beat peatlands. They store tons of carbon and clean the air so efficiently that we ought to protect them way better than we currently do. Indeed, peatlands are on the decline – that’s not good. Fortunately there is research in how best to protect the peatlands from further damage and ways to restore them to their former glory.
Peatlands are the superheroes of ecosystems: purifying water, sometimes mitigating flooding and providing a home for rare species. And they beat nearly every system when it comes to carbon storage. Known peatlands only cover about 3% of the world’s land surface, but store at least twice as much carbon as all of Earth’s standing forests. In addition, at least one-third of the world’s organic soil carbon, which plays a vital role in mitigating climate change and stabilizing the carbon cycle, is in peatlands.
“From a climate perspective, [peatlands] are the most essential terrestrial ecosystem,” says Tim Christophersen, a senior program officer with Forests and Climate at the United Nations Environment Programme.
The Canadian province of Alberta is best known for the tar sands and the damage extraction of the bitumen has done to the planet. The province is now aware that their extraction economy won’t last forever because it isn’t renewable, so they have started to implement policies to make their province more efficient. One recent thing they did was implementing a carbon tax. Over at desmog blog they compiled a list of ten reasons Albertans like the new carbon tax and how it benefits them.
4) Household Rebates — $1.5 Billion
A popular critique of carbon pricing is that it unfairly punishes lower income people, costing poor people a higher percentage of their income and leaving even fewer options to, say, buy a newer and more fuel-efficient car or furnace.
Thankfully, Alberta has integrated well-designed rebates into the design of the carbon levy, channelling $410 million in 2017-18 to household rebates.
Two-thirds of Albertan households have already received partial or full rebates, depending on their income levels. Consumers who pollute less than average actually make money from the rebates.
Over three years, the household rebates will amount to $1.5 billion.
Every year cement production contributes about 5% of the global emissions generated by humans. Any improvement around cement production will have a good impact on lowering carbon entering our atmosphere. In Sweden there’s one company using algae to lower its emissions. The country has carbon emission rates that are likely increasing in the next few years, which has inspired the cement company to figure out how to avoid paying more for producing the same amount of cement. Their solution: pumping the carbon output from their cement factory onto algae which then inhales all that delicious carbon, once the algae dies it becomes food.
It’s elegant: Take water from the Baltic Sea’s Kalmar Strait next to the plant, pump it about 100 meters (330 feet, about the length of a soccer field) into bags that can hold about 3,000 liters (800 gallons) of liquid. Add key nutrients to multiply the naturally occurring algae, and then let them soak in the gases piped to it from the cement plant (what would otherwise be the factory’s waste product) while the sun shines.
What’s more is the algae are rich in proteins and fats. After drying, they can be used as an additive for chicken- and fish-food. Heidelberg is in talks to sell the algae additives to major agricultural companies like Cargill. At its current size, the Algoland system in Degerhamn can only produce about a few kilograms of algae a day. But the plant has all it needs to scale up to make many metric tons of algae daily—light, water, fresh algae, and lots of space—and thus capture many metric tons of carbon dioxide in the process.
The science underlying Algoland is not novel, but what is new is how well it integrates the many parts entailed into an economically feasible carbon-capture plant. The used-up limestone quarry can provide the space; a greenhouse built on it ensures the right temperature and light is available even when the sun’s not shining; and the Baltic Sea is a source for both water and fresh algae.
The B Team is a collection of some of the largest companies in the world who want to see the world be a better place. They have agreed to make their companies carbon neutral by 2050 and one company has already achieved that goal – Salesforce. The tech company changed the architecture of their cloud setup to lower energy consumption. They approached the challenge by reducing waste and consumption then they offset the rest of their carbon footprint by investing in sustainable energy solutions.