In response to increasing awareness about climate change, more and more companies are now pledging to become Carbon Neutral. A great example is Microsoft's initiative to become carbon neutral and eventually carbon negative. These initiatives often involve several steps, including:
- Audit of greenhouse gas (GHG) emissions following the established Greenhouse Gas Protocol
- A plan for reducing the company's own emissions over time
- Purchasing carbon offsets to offset current emissions to achieve carbon neutrality. The offsets are should be certified by standards bodies such as the Gold Standard or Verified Carbon Standard.
While these initiatives represent a significant step forward on climate change, there are many challenges for companies which embark on such paths. Most of these challenges center around the issues of data and trust. Fortunately, distributed ledger technology or blockchain, especially an open source platform like Hyperledger, are naturally designed to solve the problems of data and trust.
The Data Challenge
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On the flipside, how much data can the company share before it's giving away proprietary competitive information?
Trust in the Blockchain
A permissioned blockchain such as Hyperledger Fabric is designed to address issues like this:
- A private channel could be set up for a company, its trusted data sources, and certifying entities.
- The data sources could include utilities, suppliers, shippers, and other sources that could supply data automatically about a company's activities. When the data is pulled from their data sources, they would be digitally signed to certify their sources. A hash of the data could also be stored for later verifying that the data has not been altered.
- One more certifying entities could have access to the data and use smart contracts to calculate the company's emissions based on the data on the private channel.
- The result could then be signed and published to a more public place.
If there are questions of the audit process, then additional parties' smart contracts could be added to the channel so that they too could audit the emissions, while limiting who has access to a company's proprietary operating data. For example, if an environmentalist group has questions about a company's reported emissions, it could develop its own smart contract for auditing emissions. It could then ask that they be deployed, possibly by a neutral third party service provider, to the company's private channel. The smart contract could audit the data and report its results without sharing the company's data with the environmentalist group.
Greater Transparency through Open Source
There are a lot of different environmental certifications today, and the general public often doesn't know which one they could trust. Some consumers feel that any business which makes a pro-environment claim is "greenwashing," while many businesses feel that no matter what they do, it's not good enough for the radicals out there.
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