CarbonGuru by CarbonGuru

Know your carbon footprint. Understand the real-world impact. Act on it instantly.

CarbonGuru calculates the carbon footprint and climate impact of any goods, services, or business activities you provide information about — product pages, shopping carts, email receipts, or pasted text. No spreadsheets, no guesswork. Just click the extension and get a clear CO₂e estimate alongside the projected climate damage in dollars, with the option to offset or fund carbon removals right from the results.

HOW IT WORKS

1. Analyze any product, service, or activity
Click the CarbonGuru button on any product page or shopping cart. The extension reads the page and sends it to our servers for analysis. It also works with Gmail purchase receipts and pasted text — anything that describes goods, services, or business activities.

2. Get a full lifecycle estimate and climate impact assessment
CarbonGuru uses AI to identify what you purchased, then applies established environmental science (EIO — Environmentally-Extended Input-Output analysis) to calculate the carbon footprint across the full product lifecycle: raw materials, manufacturing, packaging, shipping, and delivery to you. Results represent the cumulative footprint up to the point the item is in your hands, reported in kg CO₂e — the standard unit for comparing climate impact.

Then CarbonGuru goes a step further: it translates your footprint into a dollar estimate of the long-term climate damage — the real-world cost of those emissions in terms of rising temperatures, extreme weather, crop losses, health impacts, and economic disruption over decades to come. This figure, based on the Social Cost of Carbon used in federal climate policy, puts a concrete price tag on the climate consequences of everyday purchases and business decisions.

3. Offset or remove with confidence — close the gap
Every result comes with the option to purchase verified carbon offsets or carbon removals through leading providers CNaught and Stripe Climate. CarbonGuru facilitates the purchase securely on your behalf. Offset projects prevent or reduce emissions elsewhere (renewable energy, forest protection). Removal projects actively pull CO₂ from the atmosphere (direct air capture, biochar). All projects are certified by recognized standards like Verra, Gold Standard, and Puro.earth.

WHAT THE EXTENSION DOES

• Calculates carbon footprints for products, services, and business activities
• Shows the long-term climate damage of each item in dollars
• Works on thousands of online retailers — Amazon, REI, Walmart, Target, and more
• Scans Gmail purchase receipts for past orders
• Tracks your cumulative carbon footprint on a personal dashboard
• Lets you offset or fund carbon removals with one click
• Shows what drives each item's impact (industry classification, lifecycle context)

THE SCIENCE BEHIND IT
CarbonGuru's estimates are grounded in two well-established scientific frameworks.

Carbon footprint calculations use EIO (Environmentally-Extended Input-Output) analysis. EIO models the entire economy as a web of industries — each one buying from others — and traces emissions through every link in the chain. This gives you a credible, full lifecycle footprint estimate even without access to factory data or supplier lists.

Climate impact calculations use the Social Cost of Carbon (SC-CO₂), the same metric used by the U.S. federal government and international bodies to evaluate the economic damage caused by each additional ton of CO₂. It aggregates projected costs across agriculture, human health, property damage, energy systems, and ecosystem disruption over the lifetime of those emissions. The result is a single dollar figure that represents the real long-term harm of your carbon footprint — making the invisible consequences of emissions concrete and comparable.

AI handles the messy part: reading product titles, receipt text, and web pages to figure out exactly what you bought and map it to the right category. The science handles the rest. AI provides speed and clarity; established environmental and economic models provide accuracy and consistency.

WHAT WE COLLECT

The extension only sends data when you click the CarbonGuru button — it does not passively monitor your browsing. We collect the page content and URL of the product or cart you're analyzing, plus your account email. We do not store full page content after analysis. See our full privacy policy at [https://carbonguru.io/privacy/carbonguru.io/privacy] (https://carbonguru.io/privacy/carbonguru.io/privacy).

OFFSETS & REMOVALS

CarbonGuru facilitates carbon offset and removal purchases through CNaught and Stripe Climate, leading verified carbon credit providers. Every purchase includes a certificate with project details, registry links, and retirement records. You choose between offset portfolios (lower cost, emission reduction projects) and removal portfolios (higher cost, direct CO₂ removal from the atmosphere).

Free to install. Free to analyze. Pay only if you choose to offset.