SKILL.md
375 lines · 2,582 words
Food Sustainability Guide
When to Use
Use this skill when:
User asks about food sustainability
User needs guidance on food sustainability topics
User wants a structured approach to food sustainability
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At a glance
What it is
Comprehensive guide to sustainable eating practices including local eating through CSAs and farmers markets, seasonal eating guide, reducing food waste through meal planning, storage, and composting, understanding food miles, exploring sustainable protein sources, garden-to-table growing, and food preservation techniques.
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SKILL.md
375 lines · 2,582 words
Use this skill when:
User asks about food sustainability
User needs guidance on food sustainability topics
User wants a structured approach to food sustainability
Comprehensive guide to sustainable eating practices including local eating through CSAs and farmers markets, seasonal eating guide, reducing food waste through meal planning, storage, and composting, understanding food miles, exploring sustainable protein sources, garden-to-table growing, and food preservation techniques.
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What it covers
When to Use
Questions to Ask First
Phase 1: Understanding Food's Environmental Impact
Phase 2: Local Eating
Phase 3: Seasonal Eating Guide
Phase 4: Reducing Food Waste
Phase 5: Sustainable Protein Sources
Phase 6: Garden-to-Table
Phase 7: Food Preservation
Sustainable Food Action Plan
Output Format
Example
Edge Cases
Request requires professional consultation beyond educational guidance
User needs emergency assistance
What does your current diet look like (omnivore, vegetarian, vegan, other)?
How many people are in your household?
What is your weekly grocery budget?
Do you have access to farmers markets, CSAs, or local farms?
Do you currently have a garden or space to grow food?
How much food do you estimate your household wastes per week?
What cooking skills do you have, and how much time can you spend cooking?
Are there dietary restrictions or allergies in your household?
What sustainability priorities matter most to you (climate, local economy, health, animal welfare)?
Are you looking for gradual changes or a significant shift in your food system?
Food production accounts for approximately 26% of global greenhouse gas emissions. The breakdown includes animal agriculture at roughly 14.5%, crop production at around 6%, land use change at about 4%, and the supply chain (processing, transport, packaging, retail) at approximately 2%.
| Food | kg CO2e per kg of food | Water Use (liters per kg) | Land Use (m2 per kg) |
|---|---|---|---|
| Beef | 60-100 | 15,000 | 165-325 |
| Lamb | 25-40 | 10,000 | 185 |
| Cheese | 20-25 | 5,000 | 88 |
| Pork | 7-12 | 6,000 | 11 |
| Chicken | 6-10 | 4,300 | 7 |
| Farmed fish | 5-8 | Varies | 4-8 |
| Eggs | 4-5 | 3,300 | 6 |
| Rice | 4 | 2,500 | 3 |
| Tofu | 2-3 | 2,500 | 2 |
| Beans and lentils | 0.9-2 | 1,300-5,000 | 8-15 |
| Vegetables | 0.5-2 | 300-1,000 | 0.3-1 |
| Fruits | 0.5-1.5 | 500-1,500 | 0.5-1.5 |
What you eat matters more than where it comes from. Transportation typically accounts for less than 10% of food's total emissions, while production accounts for over 80%.
How CSAs work:
You purchase a "share" from a local farm at the beginning of the season
Each week or bi-weekly, you receive a box of whatever is in season
Payment upfront supports the farm during planting season
You share in both the bounty and the risk
Finding a CSA:
LocalHarvest.org has a comprehensive CSA directory
Your local farmers market often has farm sign-ups
Community bulletin boards and social media groups
Ask at farm-to-table restaurants for connections
CSA Evaluation Checklist:
What is the season length and cost per share?
Is there a half-share option for smaller households?
What is the pickup location and time?
Can you customize or is it the farmer's choice?
Are there add-ons available (eggs, meat, bread, flowers)?
What happens if you miss a pickup?
Can you visit the farm?
What farming practices do they use (organic, IPM, regenerative)?
Getting the most from farmers markets:
Arrive early for the best selection
Bring your own bags and containers
Talk to the farmers about what is at peak season and how to prepare unfamiliar items
Buy what is abundant and in season for the best price and freshness
Establish relationships with vendors for the best finds
Many markets accept SNAP/EBT and some offer matching programs
U-pick farms for berries, apples, and pumpkins
Farm stands and roadside stands
Food cooperatives
Community gardens
Neighborhood food swaps
Local fishmongers and butchers
Neighborhood fruit gleaning programs
Fresher, better-tasting produce
More nutritious (harvested ripe rather than transported unripe)
Lower transportation emissions
Supports local farms and the local economy
Usually less expensive due to abundance
Adds variety to your diet throughout the year
Spring (March-May): Asparagus, artichokes, peas, radishes, spinach, strawberries, rhubarb, lettuce, green onions, herbs (mint, chives, parsley)
Summer (June-August): Tomatoes, corn, zucchini, cucumbers, peppers, berries (blueberries, raspberries, blackberries), peaches, watermelon, green beans, eggplant, basil, okra
Fall (September-November): Apples, pears, pumpkins, winter squash (butternut, acorn, delicata), sweet potatoes, Brussels sprouts, cauliflower, broccoli, beets, cranberries, grapes, figs
Winter (December-February): Root vegetables (carrots, parsnips, turnips, rutabaga), kale, cabbage, citrus (oranges, grapefruit, lemons), stored squash, potatoes, onions, leeks, dried beans
SEASONAL MEAL PLAN
Season: _____________ Week of: _____________
What is in season now:
_________________________________________________
| Breakfast | Lunch | Dinner
---------+----------------+----------------+----------------
Monday | ______________ | ______________ | ______________
Tuesday | ______________ | ______________ | ______________
Wednesday| ______________ | ______________ | ______________
Thursday | ______________ | ______________ | ______________
Friday | ______________ | ______________ | ______________
Saturday | ______________ | ______________ | ______________
Sunday | ______________ | ______________ | ______________
Seasonal ingredients used: _________________________
Preserved items from previous seasons: _____________Thirty to forty percent of the US food supply is wasted. The average American family wastes $1,500-$2,000 worth of food per year. Food waste in landfills produces methane, a potent greenhouse gas. Reducing food waste is the single highest-impact action for most households.
Weekly Meal Planning Process:
Check what you already have in the fridge, pantry, and freezer
Plan meals using what needs to be consumed first
Build a shopping list from your meal plan
Buy only what is on the list and resist impulse purchases
Prep ingredients soon after shopping
Designate one "clean out" meal per week using leftovers and odds and ends
| Food | Best Storage Method | Shelf Life |
|---|---|---|
| Leafy greens | Washed, paper towel in sealed container, fridge | 5-7 days |
| Fresh herbs | Stems in water like flowers, covered, fridge | 7-14 days |
| Berries | Unwashed, single layer, paper towel lined container | 3-7 days |
| Tomatoes | Counter (stem side up) until ripe, then fridge | 3-5 days |
| Avocados | Counter to ripen, fridge when ripe | 2-3 days ripe |
| Bread | Room temperature 2-3 days, then freeze | Weeks in freezer |
| Cheese | Wrap in wax paper, then loose container | 1-3 weeks |
| Bananas | Counter, separate from other fruit, wrap stems | 5-7 days |
| Apples | Fridge, away from other produce (they emit ethylene) | 4-8 weeks |
| Carrots | Remove greens, sealed container with water in fridge | 2-4 weeks |
| Onions and garlic | Cool, dry, dark place with air circulation | Weeks to months |
| Potatoes | Cool, dark, dry place (not the fridge) | Weeks to months |
"Best By" or "Best Before" is a quality indicator and food is often safe well past this date
"Use By" is closer to a safety date but still often conservative
"Sell By" is for the store, not the consumer, and food is good for days or weeks after
Exception: infant formula "Use By" dates should be followed strictly
Vegetable scraps: Save onion ends, carrot peels, celery leaves, and herb stems in a freezer bag. When full, simmer in water for homemade broth.
Stale bread: croutons, breadcrumbs, bread pudding, French toast
Overripe bananas: banana bread, smoothies, frozen treats
Citrus peels: zest before using, infuse vinegar for cleaning, candied peels
Broccoli stems: peel and slice for stir-fries, soup, or slaw
| Protein Source | CO2e per serving | Water per serving | Notes |
|---|---|---|---|
| Beans and lentils | Very low | Low | Complete protein when combined with grains |
| Tofu and tempeh | Low | Low | Good source of all amino acids |
| Nuts and seeds | Low | Moderate | Calorie-dense, healthy fats |
| Eggs | Low-moderate | Moderate | Pasture-raised has welfare benefits |
| Chicken | Moderate | Moderate | Lower impact than beef or lamb |
| Fish (sustainable) | Moderate | Varies | Look for MSC certification |
| Pork | Moderate | Moderate-high | Lower than beef |
| Dairy | Moderate-high | High | Varies by product type |
| Beef | Very high | Very high | Grass-finished may be slightly better |
Gradual approaches work better than all-or-nothing:
Meatless Monday: one day per week without meat
Meat as a side rather than the star: smaller portions, more vegetables
Replace one beef meal per week with chicken, fish, or plant protein
Try plant-based versions of favorite meals
Explore cuisines that are naturally plant-forward (Indian, Ethiopian, Mexican, Mediterranean)
When buying meat, choose quality over quantity with better sourcing
Look for MSC (Marine Stewardship Council) certification for wild-caught
Look for ASC (Aquaculture Stewardship Council) for farmed
Use the Seafood Watch app from Monterey Bay Aquarium for buying guides
Generally sustainable choices include sardines, anchovies, mussels, oysters, and certain wild salmon
Generally avoid bluefin tuna, Atlantic cod (depleted), and imported shrimp (environmental and labor concerns)
Easiest vegetables for beginners:
Lettuce and salad greens (fast growing, cool season)
Herbs (basil, cilantro, parsley, mint, chives)
Tomatoes (need sun and warmth, very productive)
Zucchini (extremely productive)
Green beans (quick growing, minimal maintenance)
Radishes (ready in 30 days)
Peppers (long season but low maintenance)
| Space | Options | Suitability |
|---|---|---|
| Sunny yard | In-ground beds, raised beds | Best for most vegetables |
| Small yard | Raised bed, container garden | Good for most vegetables |
| Patio or deck | Container garden, vertical garden | Good for herbs, tomatoes, peppers, greens |
| Balcony | Window boxes, hanging planters, small containers | Good for herbs and compact greens |
| Indoor | Windowsill herbs, microgreens, sprouting | Limited but still valuable |
| No space | Community garden or allotment | Full garden capabilities |
Compost for soil amendment (free and effective)
Collect rainwater for irrigation
Use mulch to retain moisture and suppress weeds
Companion planting for natural pest control
Save seeds from heirloom varieties
Avoid synthetic pesticides and fertilizers
Plant pollinator-friendly flowers alongside vegetables
Rotate crops to maintain soil health
| Method | Difficulty | Equipment Needed | Best For | Shelf Life |
|---|---|---|---|---|
| Freezing | Easy | Freezer, containers or bags | Most fruits, vegetables, prepared meals | 6-12 months |
| Refrigerator pickling | Easy | Glass jars, vinegar | Cucumbers, onions, peppers, carrots | 2-4 weeks |
| Water bath canning | Moderate | Canning pot, jars, lids | High-acid foods (jams, tomatoes, pickles, fruit) | 1-2 years |
| Pressure canning | Advanced | Pressure canner, jars | Low-acid foods (vegetables, meats, soups) | 1-5 years |
| Dehydrating | Easy-moderate | Dehydrator or oven | Herbs, fruits, vegetables, jerky | 6-12 months |
| Fermenting | Moderate | Glass jars, salt | Sauerkraut, kimchi, pickles, hot sauce | Months to years |
Vegetables (most need blanching first): Wash and cut, blanch in boiling water for 1-5 minutes, transfer immediately to an ice bath, drain and pat dry, spread on a sheet pan and freeze flat to prevent clumping, then transfer to freezer bags labeled with the date.
Fruits: Wash and cut, spread on a parchment-lined sheet pan, freeze flat, and transfer to freezer bags. Great for smoothies, baking, and compotes.
Prepared meals: Cool completely before freezing, use freezer-safe containers with minimal headspace, label with contents and date, and use within 3 months for best quality.
Ingredients: 1 medium cabbage (shredded) and 1 tablespoon sea salt.
Method: Massage salt into shredded cabbage for 5-10 minutes until liquid is released. Pack tightly into a clean glass jar. Press down so liquid covers the cabbage. Cover loosely since gases need to escape. Keep at room temperature, pressing down daily. Taste after 3 days and ferment to your preference (3-14 days). Refrigerate when ready to slow fermentation.
The highest impact changes are:
Reduce food waste (saves money and emissions)
Eat less beef and dairy (shift toward plant-forward meals)
Choose sustainably sourced seafood
Grow something, even just herbs
Buy seasonal and local when possible
WEEKLY FOOD SUSTAINABILITY TRACKER
Week of: _______________
Food waste this week (estimated): _____
Meatless meals this week: _____
Local or seasonal items purchased: _____
Food preserved or frozen to prevent waste: _____
Meals made from scraps or leftovers: _____
New sustainable recipe tried: _____
Money saved from waste reduction: $_____Sustainable eating is not about perfection or deprivation. It is about making more conscious choices that are better for your health, your wallet, your community, and the planet. Small, consistent changes compound into meaningful impact over time.
FOOD SUSTAINABILITY OUTPUT
==========================
Section 1: Assessment / Analysis
- Key findings
- Recommendations
Section 2: Action Plan
- Step-by-step guidance
- Timeline if applicable
Section 3: Resources
- Relevant references
- Next stepsInput: "Help me get started with food sustainability"
Output: A structured food sustainability plan tailored to the user's specific situation, following the process outlined above.
Incomplete information: Ask clarifying questions before proceeding. Do not assume details the user has not provided.
Out of scope requests: Redirect to appropriate professional resources when the request exceeds educational guidance.
Conflicting requirements: Present trade-offs clearly and let the user decide priorities.
SKILL.md
375 lines · 2,582 words
The text of SKILL.md is shown as it downloads, under the Apache-2.0 license, by Ferrox Labs. The license is the one in the file's own frontmatter.
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