Add LlamaIndex integration for enhanced environmental knowledge retrieval and update requirements
3bff3ea
| """ | |
| LlamaIndex-powered RAG for Environmental Knowledge Retrieval | |
| Enhanced with 15 comprehensive product categories | |
| """ | |
| import os | |
| from llama_index.core import ( | |
| VectorStoreIndex, | |
| Document, | |
| Settings, | |
| StorageContext, | |
| load_index_from_storage | |
| ) | |
| from llama_index.llms.anthropic import Anthropic | |
| from llama_index.embeddings.huggingface import HuggingFaceEmbedding | |
| from typing import List, Dict | |
| class LlamaIndexEnvironmentalRAG: | |
| """Advanced RAG using LlamaIndex for environmental knowledge""" | |
| def __init__(self): | |
| self.index = None | |
| # Configure LlamaIndex settings | |
| Settings.llm = Anthropic( | |
| model="claude-sonnet-4-20250514", | |
| api_key=os.environ.get("ANTHROPIC_API_KEY") | |
| ) | |
| Settings.embed_model = HuggingFaceEmbedding( | |
| model_name="BAAI/bge-small-en-v1.5" | |
| ) | |
| self._initialize_index() | |
| def _initialize_index(self): | |
| """Initialize or load vector index""" | |
| persist_dir = "./storage" | |
| # Try to load existing index | |
| if os.path.exists(persist_dir): | |
| try: | |
| storage_context = StorageContext.from_defaults(persist_dir=persist_dir) | |
| self.index = load_index_from_storage(storage_context) | |
| print("✅ Loaded existing LlamaIndex from storage") | |
| return | |
| except: | |
| print("⚠️ Could not load existing index, creating new one...") | |
| # Create new index with 15-category environmental knowledge | |
| documents = self._create_comprehensive_knowledge_base() | |
| print("🔄 Building LlamaIndex vector store...") | |
| self.index = VectorStoreIndex.from_documents(documents) | |
| # Persist index | |
| self.index.storage_context.persist(persist_dir=persist_dir) | |
| print("✅ Created and persisted LlamaIndex with 15 categories") | |
| def _create_comprehensive_knowledge_base(self) -> List[Document]: | |
| """Create comprehensive 15-category environmental knowledge base""" | |
| knowledge_docs = [ | |
| # Category 1: Electronics | |
| Document( | |
| text=""" | |
| Electronics and E-Waste Environmental Impact | |
| E-waste is the fastest-growing waste stream globally, expanding 5x faster than recycling capacity. | |
| Electronic devices contain rare earth metals: lithium, cobalt, neodymium, tantalum, and gold. | |
| Manufacturing accounts for 80% of total carbon footprint for most electronic devices. | |
| Conflict minerals sourcing causes human rights violations and environmental destruction in mining regions. | |
| Planned obsolescence deliberately shortens device lifespan, driving unnecessary waste. | |
| Product Examples: smartphones, laptops, headphones, tablets, computers, smart devices, earbuds, speakers, monitors, TVs, cameras | |
| Carbon Footprint Data: | |
| - Smartphone: 70-80 kg CO2e (manufacturing phase) | |
| - Laptop: 300-400 kg CO2e (full lifecycle) | |
| - Wireless headphones: 15-20 kg CO2e | |
| - Desktop computer: 500 kg CO2e | |
| - Smart TV: 300 kg CO2e | |
| Environmental Issues: | |
| - Toxic materials (lead, mercury, cadmium, brominated flame retardants) | |
| - Energy-intensive mining operations causing habitat destruction | |
| - Global recycling rate only 20% | |
| - Average smartphone replaced every 2 years | |
| - E-waste exports to developing countries | |
| Sustainable Alternatives: | |
| - Refurbished devices (90% lower carbon footprint) | |
| - Modular phones like Fairphone (easily repairable) | |
| - Long-lasting, Right-to-Repair certified electronics | |
| - Electronics leasing and take-back programs | |
| - Energy Star certified devices | |
| """, | |
| metadata={"category": "electronics", "impact_level": "critical", "coverage": "comprehensive"} | |
| ), | |
| # Category 2: Plastics | |
| Document( | |
| text=""" | |
| Plastics Environmental Impact and Pollution Crisis | |
| Only 9% of all plastic ever produced has been recycled globally - a recycling failure. | |
| Plastics take 450+ years to decompose, breaking into harmful microplastics. | |
| Microplastics have entered the entire food chain, found in human blood and organs. | |
| 8 million tons of plastic waste enter oceans every year, forming massive garbage patches. | |
| Virgin plastic production from petroleum creates massive carbon emissions. | |
| Product Examples: water bottles, plastic bags, food containers, packaging materials, straws, cups, cutlery, wrap | |
| Carbon Footprint Data: | |
| - Single plastic bottle: 82g CO2e | |
| - Plastic grocery bag: 10g CO2e | |
| - Plastic food container: 150g CO2e | |
| - Styrofoam cup: 25g CO2e | |
| - Plastic wrap (per meter): 5g CO2e | |
| Environmental Issues: | |
| - Ocean pollution causing marine life deaths (1 million seabirds, 100,000 marine mammals annually) | |
| - Microplastic contamination in drinking water (93% of bottled water contains microplastics) | |
| - Non-biodegradable waste accumulating in landfills for centuries | |
| - Petroleum extraction and refining for plastic production | |
| - Toxic chemical leaching into soil and water | |
| Sustainable Alternatives: | |
| - Reusable stainless steel bottles (saves 30kg CO2e per year) | |
| - Glass containers (infinitely recyclable) | |
| - Biodegradable materials (PLA from corn starch) | |
| - Zero-waste refill programs | |
| - Beeswax wraps instead of plastic wrap | |
| """, | |
| metadata={"category": "plastics", "impact_level": "critical", "urgency": "immediate"} | |
| ), | |
| # Category 3: Textiles | |
| Document( | |
| text=""" | |
| Textiles and Fashion Industry Environmental Impact | |
| Fashion industry accounts for 10% of global carbon emissions, more than aviation and shipping combined. | |
| Water intensive: 2,700 liters needed for one cotton t-shirt (drinking water for 1 person for 2.5 years). | |
| Textile waste fills landfills with 92 million tons annually, most from fast fashion. | |
| Synthetic fabrics like polyester shed microplastics into water with every wash. | |
| Textile dyeing is the second-largest water polluter globally after agriculture. | |
| Product Examples: clothing, shirts, jeans, shoes, leather goods, fast fashion items, dresses, jackets, socks, sportswear | |
| Carbon Footprint Data: | |
| - Cotton t-shirt: 7 kg CO2e | |
| - Pair of jeans: 33 kg CO2e | |
| - Running shoes/sneakers: 14 kg CO2e | |
| - Leather shoes: 30 kg CO2e | |
| - Winter coat: 50 kg CO2e | |
| - Dress: 20 kg CO2e | |
| Environmental Issues: | |
| - Fast fashion waste (average garment worn only 7 times before disposal) | |
| - Water pollution from toxic dyes contaminating rivers | |
| - Microplastic shedding from polyester (500,000 tons per year into oceans) | |
| - Unethical labor practices in garment factories | |
| - Cotton farming using 25% of world's pesticides | |
| Sustainable Alternatives: | |
| - Organic cotton (40% lower carbon footprint, no pesticides) | |
| - Recycled materials and upcycled fashion | |
| - Second-hand and vintage clothing | |
| - Slow fashion brands (Patagonia, Eileen Fisher) | |
| - Clothing rental and sharing services | |
| - Hemp and bamboo fabrics | |
| """, | |
| metadata={"category": "textiles", "impact_level": "high", "water_intensive": True} | |
| ), | |
| # Category 4: Food & Agriculture | |
| Document( | |
| text=""" | |
| Food System and Agriculture Environmental Impact | |
| Food system accounts for 26% of global greenhouse gas emissions. | |
| Animal agriculture drives 80% of Amazon rainforest deforestation. | |
| Meat production requires massive water and land use compared to plant-based alternatives. | |
| Food waste generates 8% of global emissions - if food waste were a country, it would be 3rd largest emitter. | |
| Transportation impact varies dramatically by product type and distance (food miles). | |
| Product Examples: beef, meat products, dairy, cheese, chicken, fish, coffee, avocados, processed foods, vegetables | |
| Carbon Footprint Data: | |
| - Beef (1kg): 60 kg CO2e | |
| - Lamb (1kg): 24 kg CO2e | |
| - Cheese (1kg): 21 kg CO2e | |
| - Pork (1kg): 7 kg CO2e | |
| - Chicken (1kg): 6 kg CO2e | |
| - Plant-based burger: 2 kg CO2e | |
| - Coffee (1kg beans): 15 kg CO2e | |
| - Avocado (1kg): 0.8 kg CO2e | |
| Environmental Issues: | |
| - Methane emissions from cattle (28x more potent than CO2) | |
| - Deforestation for agriculture and grazing land | |
| - Water scarcity in agricultural regions | |
| - Pesticide and fertilizer pollution | |
| - Food miles and cold chain transportation | |
| - Fishing industry overfishing and bycatch | |
| Sustainable Alternatives: | |
| - Plant-based proteins (90% lower carbon footprint than beef) | |
| - Local and seasonal produce (reduces transport emissions) | |
| - Regenerative agriculture practices | |
| - Reduced food waste through meal planning | |
| - Sustainable fishing certifications (MSC, ASC) | |
| - Organic farming methods | |
| """, | |
| metadata={"category": "food", "impact_level": "critical", "deforestation_driver": True} | |
| ), | |
| # Category 5: Vehicles & Transportation | |
| Document( | |
| text=""" | |
| Vehicles and Transportation Environmental Impact | |
| Transportation accounts for 27% of US greenhouse gas emissions, 14% globally. | |
| EV battery production is energy-intensive but lifetime emissions are 50-70% lower than ICE vehicles. | |
| Manufacturing accounts for 15-20% of total vehicle lifetime emissions. | |
| Public transportation is the most efficient option per passenger mile. | |
| Aviation contributes 2.5% of global CO2 emissions but growing rapidly. | |
| Product Examples: cars, electric vehicles, bikes, e-bikes, scooters, motorcycles, buses, trains | |
| Carbon Footprint Data: | |
| - ICE Car (lifetime 150,000 miles): 35,000 kg CO2e | |
| - Electric Car (lifetime, grid mix): 24,000 kg CO2e | |
| - Electric Car (renewable energy): 15,000 kg CO2e | |
| - E-bike (lifetime): 500 kg CO2e | |
| - Bicycle (manufacturing): 50 kg CO2e | |
| - Motorcycle (lifetime): 20,000 kg CO2e | |
| Environmental Issues: | |
| - Fossil fuel dependence and air pollution | |
| - Lithium and cobalt mining for EV batteries | |
| - Urban air quality deterioration | |
| - Infrastructure emissions (roads, parking) | |
| - Resource depletion for manufacturing | |
| Sustainable Alternatives: | |
| - Electric vehicles powered by renewable energy | |
| - Bicycles and e-bikes for short trips | |
| - Public transportation (bus, train, metro) | |
| - Car-sharing and ride-sharing services | |
| - Walking for ultra-short distances | |
| - Hybrid vehicles as transition technology | |
| """, | |
| metadata={"category": "vehicles", "impact_level": "high", "ev_better": True} | |
| ), | |
| # Category 6: Home & Furniture | |
| Document( | |
| text=""" | |
| Home Furniture and Appliances Environmental Impact | |
| Furniture production drives deforestation, especially for tropical hardwoods. | |
| VOC emissions from paints, finishes, and adhesives harm indoor air quality. | |
| Fast furniture culture creates massive landfill waste (similar to fast fashion). | |
| Appliances contain refrigerants that are potent greenhouse gases (HFCs). | |
| Average sofa produces 90kg CO2e during manufacturing. | |
| Product Examples: sofas, tables, chairs, mattresses, beds, desks, shelves, cabinets, refrigerators, washing machines | |
| Carbon Footprint Data: | |
| - Sofa: 90 kg CO2e | |
| - Wooden table: 40 kg CO2e | |
| - Mattress: 100 kg CO2e | |
| - Office chair: 30 kg CO2e | |
| - Refrigerator: 200 kg CO2e | |
| - Washing machine: 150 kg CO2e | |
| Environmental Issues: | |
| - Deforestation for lumber (illegal logging in rainforests) | |
| - Formaldehyde and VOC off-gassing | |
| - Landfill waste from disposable furniture | |
| - HFC refrigerants (1,000-3,000x more potent than CO2) | |
| - Energy consumption of appliances | |
| Sustainable Alternatives: | |
| - Certified sustainable wood (FSC, SFI) | |
| - Second-hand and vintage furniture | |
| - Energy Star rated appliances | |
| - Natural latex mattresses | |
| - Modular and repairable furniture | |
| - Low-VOC paints and finishes | |
| """, | |
| metadata={"category": "home_furniture", "impact_level": "moderate", "voc_emissions": True} | |
| ), | |
| # Category 7: Personal Care & Cosmetics | |
| Document( | |
| text=""" | |
| Personal Care and Cosmetics Industry Environmental Impact | |
| Beauty industry produces 120 billion packaging units per year, mostly plastic. | |
| Microplastics in products (microbeads) enter oceans and food chain. | |
| Palm oil in cosmetics drives rainforest deforestation in Southeast Asia. | |
| Chemical pollution from production affects waterways globally. | |
| Single-use packaging dominates the industry. | |
| Product Examples: shampoo, soap, cosmetics, makeup, skincare, deodorant, toothpaste, lotion, perfume, sunscreen | |
| Carbon Footprint Data: | |
| - Shampoo bottle: 200g CO2e | |
| - Makeup palette: 150g CO2e | |
| - Deodorant: 100g CO2e | |
| - Toothpaste tube: 80g CO2e | |
| - Perfume: 300g CO2e | |
| - Sunscreen: 180g CO2e | |
| Environmental Issues: | |
| - 120 billion plastic packaging units annually | |
| - Microbeads in scrubs (banned in many countries) | |
| - Palm oil plantations replacing rainforests | |
| - Chemical runoff polluting waterways | |
| - Animal testing in some markets | |
| - Single-use sample sachets | |
| Sustainable Alternatives: | |
| - Solid bars (shampoo, soap) with no packaging | |
| - Refillable containers and bulk buying | |
| - Natural and organic ingredients | |
| - Cruelty-free and vegan products | |
| - Biodegradable packaging | |
| - Zero-waste brands (Lush, Ethique) | |
| """, | |
| metadata={"category": "personal_care", "impact_level": "moderate", "plastic_intensive": True} | |
| ), | |
| # Category 8: Cleaning Products | |
| Document( | |
| text=""" | |
| Cleaning Products Environmental Impact | |
| Household cleaners release volatile organic compounds (VOCs) affecting air quality. | |
| Phosphates in detergents cause water eutrophication and algal blooms. | |
| Plastic bottles account for 8 billion units per year in cleaning products alone. | |
| Chemical production for cleaners is energy-intensive with toxic byproducts. | |
| Concentrated formulas can reduce emissions by 50% through smaller packaging. | |
| Product Examples: laundry detergent, dish soap, surface cleaners, bleach, disinfectant, glass cleaner, floor cleaner | |
| Carbon Footprint Data: | |
| - Laundry detergent (3L): 500g CO2e | |
| - Dish soap: 200g CO2e | |
| - All-purpose cleaner: 300g CO2e | |
| - Bleach: 400g CO2e | |
| - Glass cleaner: 150g CO2e | |
| Environmental Issues: | |
| - VOC emissions affecting indoor and outdoor air quality | |
| - Phosphate pollution causing dead zones in waterways | |
| - Plastic bottle waste (mostly non-recycled) | |
| - Toxic chemical production processes | |
| - Antimicrobial resistance from overuse of disinfectants | |
| Sustainable Alternatives: | |
| - Concentrated formulas (use less packaging) | |
| - Refill stations and bulk buying | |
| - DIY cleaners (vinegar, baking soda, castile soap) | |
| - Plant-based ingredients | |
| - Recyclable or compostable packaging | |
| - Seventh Generation, Method brands | |
| """, | |
| metadata={"category": "cleaning_products", "impact_level": "moderate", "water_pollution": True} | |
| ), | |
| # Category 9: Toys & Games | |
| Document( | |
| text=""" | |
| Toys and Gaming Environmental Impact | |
| 80% of toys are made from plastic, contributing to waste crisis. | |
| Average child in US receives 70 new toys per year. | |
| Short toy lifespan due to trends and breakage creates high waste. | |
| Gaming consoles and electronics become e-waste quickly. | |
| Sports equipment often made from single materials difficult to recycle. | |
| Product Examples: action figures, dolls, LEGO, puzzles, board games, video game consoles, sports equipment | |
| Carbon Footprint Data: | |
| - Plastic toy (average): 200g CO2e | |
| - LEGO set (1kg): 2 kg CO2e | |
| - Board game: 500g CO2e | |
| - Gaming console: 50 kg CO2e | |
| - Sports ball: 300g CO2e | |
| - Bicycle toy: 1 kg CO2e | |
| Environmental Issues: | |
| - Plastic waste accumulation (90% of toys) | |
| - Trend-driven consumption (movie tie-ins) | |
| - E-waste from electronic toys and consoles | |
| - Toxic materials (phthalates, BPA) | |
| - Difficult disassembly for recycling | |
| Sustainable Alternatives: | |
| - Wooden toys from sustainable sources | |
| - Second-hand and toy libraries | |
| - Durable, timeless designs | |
| - LEGO take-back programs | |
| - Games-as-a-service (digital instead of physical) | |
| - Sports equipment made from recycled materials | |
| """, | |
| metadata={"category": "toys_games", "impact_level": "moderate", "plastic_dominant": True} | |
| ), | |
| # Category 10: Paper Products & Books | |
| Document( | |
| text=""" | |
| Paper Products and Publishing Environmental Impact | |
| Paper production accounts for 26% of landfill waste globally. | |
| Deforestation for virgin pulp affects biodiversity and carbon sinks. | |
| Recycled paper uses 70% less energy than virgin paper production. | |
| Printing and transportation add significant emissions. | |
| Digital alternatives can reduce carbon footprint by 90%. | |
| Product Examples: books, notebooks, paper, cardboard packaging, magazines, newspapers, tissue, office supplies | |
| Carbon Footprint Data: | |
| - Paperback book: 1 kg CO2e | |
| - Notebook (100 pages): 500g CO2e | |
| - Cardboard box: 300g CO2e | |
| - Magazine: 200g CO2e | |
| - Tissue box: 150g CO2e | |
| - Office paper (ream): 5 kg CO2e | |
| Environmental Issues: | |
| - Deforestation (42% of wood harvest for paper) | |
| - Energy-intensive pulping and bleaching | |
| - Chemical pollution from paper mills | |
| - Landfill waste (recyclable but often discarded) | |
| - Ink production environmental impact | |
| Sustainable Alternatives: | |
| - Recycled paper (70% less energy) | |
| - Digital books and documents (e-readers) | |
| - FSC-certified paper products | |
| - Reduced printing (cloud storage) | |
| - Reusable notebooks (Rocketbook) | |
| - Hemp and bamboo paper | |
| """, | |
| metadata={"category": "paper_products", "impact_level": "moderate", "deforestation_link": True} | |
| ), | |
| # Category 11: Beverages | |
| Document( | |
| text=""" | |
| Beverage Industry Environmental Impact | |
| Beverage packaging is major waste source globally. | |
| Aluminum cans: 170g CO2e each to produce. | |
| Glass bottles are heavy, requiring more transport fuel. | |
| Coffee pods generate 11 billion units of waste annually. | |
| Single-use plastic bottles dominate the market. | |
| Product Examples: coffee, tea, soda, beer, wine, juice, bottled water, energy drinks, sports drinks | |
| Carbon Footprint Data: | |
| - Aluminum can: 170g CO2e | |
| - Glass bottle: 200g CO2e | |
| - Plastic bottle: 82g CO2e | |
| - Coffee pod (single): 50g CO2e | |
| - Tetra Pak carton: 100g CO2e | |
| - Beer bottle: 300g CO2e | |
| Environmental Issues: | |
| - Packaging waste (major contributor) | |
| - Water extraction affecting local communities | |
| - Transportation emissions (heavy liquids) | |
| - Single-use culture dominance | |
| - Coffee pod waste (non-recyclable) | |
| Sustainable Alternatives: | |
| - Tap water in reusable bottles | |
| - Bulk beverages (kegs, large containers) | |
| - Recyclable aluminum (infinitely recyclable) | |
| - Loose-leaf tea instead of pods | |
| - Local products (reduced transport) | |
| - SodaStream for homemade carbonation | |
| """, | |
| metadata={"category": "beverages", "impact_level": "moderate", "packaging_intensive": True} | |
| ), | |
| # Category 12: Healthcare & Medical | |
| Document( | |
| text=""" | |
| Healthcare and Medical Products Environmental Impact | |
| Healthcare sector contributes 4.4% of global greenhouse gas emissions. | |
| Pharmaceutical production is highly chemical and energy-intensive. | |
| Single-use medical plastics create massive waste streams. | |
| Proper disposal critical as pharmaceuticals pollute water systems. | |
| Blister packs and medical packaging often non-recyclable. | |
| Product Examples: medications, pills, supplements, bandages, medical devices, prescriptions, vitamins, first aid supplies | |
| Carbon Footprint Data: | |
| - Pharmaceutical production (per kg): 50 kg CO2e | |
| - Blister pack medication: 100g CO2e | |
| - Supplement bottle: 200g CO2e | |
| - Medical device (average): 5 kg CO2e | |
| - Bandage box: 50g CO2e | |
| Environmental Issues: | |
| - Pharmaceutical pollution in waterways | |
| - Single-use medical plastic waste | |
| - Chemical-intensive production | |
| - Antimicrobial resistance from improper disposal | |
| - Non-recyclable packaging (blister packs) | |
| Sustainable Alternatives: | |
| - Proper medication disposal programs | |
| - Reusable medical equipment where safe | |
| - Bulk medication packaging | |
| - Generic medications (less packaging) | |
| - Biodegradable bandages | |
| - Pharmaceutical take-back programs | |
| """, | |
| metadata={"category": "healthcare", "impact_level": "moderate", "chemical_intensive": True} | |
| ), | |
| # Category 13: Energy Products | |
| Document( | |
| text=""" | |
| Energy Products and Batteries Environmental Impact | |
| Battery production involves rare earth mining with massive environmental footprint. | |
| Lithium extraction is extremely water-intensive (500,000L per ton). | |
| E-waste from chargers and power banks accumulates rapidly. | |
| LED bulbs save 75% energy compared to incandescent but contain electronics. | |
| Solar panels offset their carbon footprint in 2-4 years of operation. | |
| Product Examples: batteries, chargers, light bulbs, solar panels, power banks, extension cords, LED lights | |
| Carbon Footprint Data: | |
| - AA battery (alkaline): 20g CO2e | |
| - Lithium-ion battery (phone): 50g CO2e | |
| - Phone charger: 100g CO2e | |
| - LED bulb: 50g CO2e | |
| - Solar panel (per kW): 500 kg CO2e (offset in 2-4 years) | |
| - Power bank: 200g CO2e | |
| Environmental Issues: | |
| - Rare earth mining (cobalt, lithium) | |
| - Water-intensive lithium extraction | |
| - E-waste from disposable chargers | |
| - Toxic materials in batteries | |
| - Energy use in production | |
| Sustainable Alternatives: | |
| - Rechargeable batteries (500+ cycles) | |
| - Solar chargers for small devices | |
| - LED bulbs (10x longer lasting) | |
| - Energy efficient appliances | |
| - Solar panels for home energy | |
| - Battery recycling programs | |
| """, | |
| metadata={"category": "energy_products", "impact_level": "high", "mining_intensive": True} | |
| ), | |
| # Category 14: Pet Products | |
| Document( | |
| text=""" | |
| Pet Products Industry Environmental Impact | |
| Pet food industry generates 64 million tons CO2e per year globally. | |
| Meat-based pet food has similar footprint to meat for humans. | |
| Plastic pet toys are non-recyclable and short-lived. | |
| Cat litter production involves destructive clay mining. | |
| Pet waste contributes to methane emissions in landfills. | |
| Product Examples: dog food, cat food, pet toys, cat litter, pet beds, collars, leashes, treats | |
| Carbon Footprint Data: | |
| - Dry dog food (10kg): 20 kg CO2e | |
| - Wet cat food (12 cans): 10 kg CO2e | |
| - Plastic pet toy: 300g CO2e | |
| - Clay cat litter (20kg): 15 kg CO2e | |
| - Pet bed: 5 kg CO2e | |
| - Dog leash: 500g CO2e | |
| Environmental Issues: | |
| - Meat-based food = high carbon footprint | |
| - Plastic toy waste | |
| - Clay mining for litter | |
| - Pet waste methane emissions | |
| - Overfishing for fish-based food | |
| Sustainable Alternatives: | |
| - Insect-based or plant-based pet food | |
| - Biodegradable poop bags | |
| - Natural wood or paper cat litter | |
| - Durable, natural material toys | |
| - Composting pet waste properly | |
| - Recycled material pet beds | |
| """, | |
| metadata={"category": "pet_products", "impact_level": "moderate", "meat_based": True} | |
| ), | |
| # Category 15: Construction Materials | |
| Document( | |
| text=""" | |
| Construction Materials Environmental Impact | |
| Cement production alone accounts for 8% of global CO2 emissions. | |
| Steel production contributes 7% of global greenhouse gas emissions. | |
| Deforestation for lumber affects biodiversity and carbon sequestration. | |
| Paint releases volatile organic compounds (VOCs) harming air quality. | |
| Construction and demolition waste makes up 40% of landfill content. | |
| Product Examples: cement, concrete, steel beams, lumber, paint, insulation, drywall, tiles, bricks | |
| Carbon Footprint Data: | |
| - Cement (per ton): 900 kg CO2e | |
| - Concrete (per ton): 410 kg CO2e | |
| - Steel (per ton): 1,850 kg CO2e | |
| - Lumber (per m³): 100 kg CO2e | |
| - Paint (per gallon): 5 kg CO2e | |
| - Insulation (per m²): 10 kg CO2e | |
| Environmental Issues: | |
| - Cement calcination releases massive CO2 | |
| - Steel blast furnaces use coal | |
| - Illegal logging and deforestation | |
| - Paint VOC off-gassing | |
| - Construction waste (40% of landfills) | |
| - Mining for aggregates | |
| Sustainable Alternatives: | |
| - Green cement (fly ash, slag cement) | |
| - Recycled steel (60% less emissions) | |
| - Certified sustainable lumber (FSC) | |
| - Low-VOC and zero-VOC paints | |
| - Recycled insulation materials | |
| - Modular construction (less waste) | |
| - Hempcrete and bamboo materials | |
| """, | |
| metadata={"category": "construction", "impact_level": "critical", "industrial_scale": True} | |
| ) | |
| ] | |
| return knowledge_docs | |
| def retrieve_knowledge(self, product_name: str, top_k: int = 2) -> str: | |
| """Retrieve relevant environmental knowledge using semantic search""" | |
| if not self.index: | |
| return "Knowledge base not available" | |
| # Create query engine | |
| query_engine = self.index.as_query_engine( | |
| similarity_top_k=top_k, | |
| response_mode="compact" | |
| ) | |
| # Query for product-specific knowledge | |
| query = f"Environmental impact, carbon footprint, issues, and sustainable alternatives for: {product_name}" | |
| response = query_engine.query(query) | |
| return str(response) | |
| def add_document(self, text: str, metadata: Dict = None): | |
| """Add new environmental document to index""" | |
| doc = Document(text=text, metadata=metadata or {}) | |
| self.index.insert(doc) | |
| self.index.storage_context.persist() | |
| print(f"✅ Added new document to LlamaIndex") |