Carbon Credit Transaction

This project presents a decentralized solution for managing carbon credits using Solidity, Web3, and a Flask-based web interface. It simulates a real-world carbon trading ecosystem where a government authority issues credits to industries, which can then consume, monitor, or transfer these credits securely on the blockchain.

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Overview

Carbon credits are essential in the fight against climate change, allowing organizations to offset their emissions through regulated credit systems. This system ensures transparency and auditability of:

• Credit issuance by a central authority (government)
• Usage logging by industries
• Credit transfers between industries
• Real-time visibility into credit balances

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Core Functionalities

Government (Admin)

• Deploys the smart contract and becomes the authoritative issuer
• Issues carbon credits to any registered industry
• Monitors total credits in circulation
• Views industry balances and usage statistics through a dashboard

Industry Users

• View their available, used, and transferred carbon credits
• Use credits to simulate emissions
• Transfer credits to other industries within the system
• Access a real-time dashboard for balance visualization

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Smart Contract (Solidity)

The CarbonCreditSystem contract supports:

• issueCarbonCredits(address _industry, uint _amount)
  Government function to assign credits to industries.

• useCarbonCredits(uint _amount)
  Industry function to burn credits as per emissions.

• transferCredits(address _to, address _from, uint _amount)
  Allows credit movement between industries.

• getCarbonCreditBalance(address _industry)
  Returns remaining carbon credits.

• getUsedCarbonCredits(address _industry)
  Tracks utilized credits.

• getCarbonTransferCreditBalance(address _industry)
  Tracks transferred credits.

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Web Application

The Flask app provides role-based access and Web3 integration:

• Login System: Admin and industry users authenticate with hardcoded credentials.
• Admin Dashboard: Displays balances of all industries, with options to issue credits.
• Industry Dashboard: Displays current balances and allows credit usage and transfers.
• Web3 Integration: Communicates with the smart contract deployed on an Ethereum-compatible testnet (e.g., BSC Testnet via Infura).

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Highlights

• Decentralized governance for trustless credit allocation
• Real-time dashboards for both admin and industry
• Secure credit transfers verified by smart contract logic
• Role-based access control using Flask-Login

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Technologies Used

Component	Technology
Blockchain	Ethereum + Web3
Smart Contract	Solidity
Web Backend	Flask
Cryto Wallet	Meta-Mask

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Notes

• Ensure the smart contract is deployed on a supported Ethereum-compatible network.
• Update the contract address (add) and endpoint in the Flask app for full functionality.
• Metamask or any Ethereum wallet can be used for live testing with real accounts.