🌍 GreenLedger: Decentralized Carbon Credit Rewards

GreenLedger is a blockchain-powered platform that brings transparency, accountability, and gamification to sustainability efforts.
Businesses log eco-friendly actions such as tree planting, renewable energy usage, or recycling, and earn tokenized carbon credits (CCT) that are recorded immutably on-chain.
To encourage participation, companies unlock NFT badges (Bronze, Silver, Gold) as they achieve milestones, making climate action both verifiable and engaging.

✨ Features

• 🌱 Carbon Credits (ERC-20): Tokenized proof of eco-friendly actions.
• 🎖️ EcoBadge NFTs (ERC-721): Rewards for sustainability milestones.
• 📊 Svelte Dashboard: Interactive UI with charts and leaderboards.
• 🌍 Public Transparency: Verifiable records to combat greenwashing.
• 🏆 Gamification: Leaderboard system to drive healthy competition.

🏗️ Tech Stack

• Frontend: Svelte, TailwindCSS, Recharts

• Blockchain: Solidity, Ethereum (Sepolia Testnet) / Polygon, Hardhat

• Smart Contracts:

  • CarbonCreditToken.sol (ERC-20) → Carbon credits
  • EcoBadgeNFT.sol (ERC-721) → Milestone NFTs

• Wallet Integration: MetaMask / WalletConnect

🚀 How It Works

1. Company Login → Connect wallet via MetaMask.
2. Log Eco Action → Example: "Planted 100 trees."
3. Verification → Action is validated (admin/oracle).
4. Credit Minting → Carbon credits are minted as ERC-20 tokens.
5. Badges Earned → NFT milestones unlocked (Bronze, Silver, Gold).
6. Dashboard → View credits, charts, and leaderboard in real time.

📸 Screenshots

• Company Dashboard
• Leaderboard
• NFT Badge Gallery