BioHiTech's Resolution Series Digesters are capable of processing up to 1,400 lbs of food waste per day


Million Dollars

is the amount of purchase orders for BioHiTech's digesters from Carnival Corporation


Tons Per Year

BioHiTech's resource recovery facility produces 50,000 tons per year of Engineered Solid Recovered Fuel

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The Path to Drawdown: Methane Capture

While carbon dioxide is the greenhouse gas that’s often talked about, methane has 34x the greenhouse effect of carbon dioxide over the course of a century. And the biggest source of methane are landfills, accounting for 12% of the world’s total methane emissions.

Methane is generated by the organic matter in landfills like food scraps, yard trimmings, junk wood, and wastepaper. Their decomposition produces biogas, a roughly equal mix of carbon dioxide, methane, and small amounts of other gases.

As diets change, waste is reduced, and recycling and composting grow, we’re hopeful that landfill waste as a whole will decline. But for now, as the modern way of life continues and organic matter in landfills continues to decompose, landfills and landfill methane emissions keep growing.

The way to manage this is landfill methane capture - the process of capturing methane generated from anaerobic digestion of municipal solid waste in landfills and incinerating the captured biogas to generate electricity. This solution has double benefits: it captures methane from landfills, and it replaces conventional electricity-generating technologies like coal, oil, and natural gas power plants.

Currently, enough methane is captured to generate 33.1 TWh of electricity, or 0.13% of total electricity generated worldwide. In the best-case scenario for the year 2050, landfills wouldn’t exist, and integration and waste feedstock availability would mean a net greenhouse gas sequestration, rather than emission. In a less ideal scenario, 70% of the world’s landfills will have adopted methane capture, and they help reduce 2.2 gigatons of CO2e between 2020 and 2050

What We Want to See Improve

Disclose Sustainability Metrics

We're excited about BioHiTech's products and business model, but we'd like to know more about their own carbon and environmental footprint. As of now, they make no sustainability information available on their website or in their reports. We want to see them publish an annual sustainability report that includes the amounts of greenhouse gas emissions, sources of energy use, and amount of waste generated.

Set Clear Goals

Once these sustainability metrics are published, BioHiTech should move on to setting clear goals for reducing their footprint. How will they reduce their GHG emissions to be in line with the global commitment to stay under 1.5°C of warming? By when? These things should be clearly spelled out.

Enhance Supplier Transparency

BioHiTech states (p. 10) that their digesters are manufactured in the United States, but doesn't give much more information beyond that. We need to know who their suppliers and partners are and where they're located so that we can assess the carbon and environmental footprint of BioHiTech's overall supply chain.

Related Methane Digester Stocks in the Climate Index

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Allocated Company Description


Waste Management, Inc. (WM)

Waste Management collects waste and recyclable materials across North America and converts landfill gas to energy - a solution to methane emissions


Waste Connections (WCN)

WCN collects waste and captures methane from a majority of their landfills. It’s a key alternative to methane emissions


Casella Waste Systems (CWST)

Casella’s solid waste service converts methane from landfills into energy. It’s a much lower-emission alternative than releasing methane into the air


Village Farms International, Inc. (VFF)

VFF captures methane from landfills, converts it into electricity, and sells it to a utility company. Methane capture is a key solution to reduce emissions


Renovare Environmental, Inc. (RENO)

Renovare Environmental enables organizations to divert organic waste from landfill and instead turn it into fertilizer and fuel. They help reduce methane emissions

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