These links are great for research, analysis, education or just as as self check.
American Center for Life Cycle Assessment - http://lcacenter.org/
Life Cycle Assessment is a holistic yardstick of the environmental performance of products and services. It measures how much impact a product has both directly and indirectly. An LCA is holistic because it covers all phases of the product's life cycle and it covers all significant environmental impacts.
CalcuLess, Environmental Impact
Analyzer - http://www.calculess.net/calculess.htm
Environmental Impact Analyzer, which provides a simplified analysis of many of the major aspects contributing to the environmental impact of your packaging: greenhouse gas emissions, energy consumption, and post-consumer solid waste.
Car Payment Calculator - http://www.carpaymentcalculator.net/calcs/hybrid-vehicles.php
Includes Hybrid Car & Alternative Fuel Vehicle Tax Credits.
Conservation International Eco-Footprint- http://www.conservation.org/act/get_involved/carbon_calculator/pages/default.aspx
Measure Your Eco-footprint, Take our short quiz to find out your eco-rating and get other ideas on how to reduce your eco-footprint.
Oregon Carbon Calculator - http://www.deq.state.or.us/programs/sustainability/carboncalculator.htm
The Oregon Carbon Calculator calculates all direct and indirect greenhouse gas emissions from personal transportation, household energy use, and consumption of food, goods and services.
DEQ, Household Emissions Calculator - http://www.epa.gov/climatechange/emissions/ind_calculator.html
You can use the following online calculator to get a rough "ballpark" estimate of your personal or family's greenhouse gas emissions and explore the impact of taking various actions to reduce your emissions.
Environmental Defense Fund Paper Calculator - http://calculator.environmentalpaper.org/home
calculate energy, water, wood use and pollution produced in making paper.
EcoBusiness Ecological footprint calculators - http://www.ecobusinesslinks.com/ecological_footprint___pollution_calculators/
Besides ecological footprint calculators, here you'll find also: calculators for commuting costs, building energy efficiency, solar water heating savings, food chemicals, ...
Ecological Footprint Quiz - http://www.myfootprint.org/
Ever wondered how much “nature” your lifestyle requires? You’re about to find out. This award winning Ecological Footprint Quiz estimates the amount of land and ocean area required to sustain your consumption patterns and absorb your wastes on an annual basis.
EcologyFund - Ecological Footprint Calculator - http://www.ecologyfund.com/registry/ecology/res_bestfoot.html
To estimate your footprint, select those options that most closely reflect your lifestyle.
Economic Input-Output Life Cycle Assessment (EIO-LCA) - http://www.eiolca.net/
EIO-LCA method estimates the materials and energy resources required for, and the environmental emissions resulting from, activities in our economy.
EPA Widgets - http://developer.epa.gov/category/widgets/
WATER, H2O Calculator - http://www.gracelinks.org/1408/water-footprint-calculator
Watch Aqua and her dog, Sparky, show her family how to conserve water and save money
Water Footprint Calculator National Geographic - http://environment.nationalgeographic.com/environment/freshwater/change-the-course/water-footprint-calculator/
Take a water tour through your home, yard, diet, and transportation and consumer choices! Then, pledge to cut your water footprint and help return more water to rivers, lakes, wetlands, underground aquifers, and freshwater species.
The World Clock - http://www.peterrussell.com/Odds/WorldClock.php
Worldometers.info - http://www.worldometers.info/
Worldometers is part of the Real Time Statistics Project, which is managed by an international team of developers, researchers, and volunteers with the goal of making world statistics available in a thought-provoking and time relevant format to a wide audience around the world. Chief project coordinator is currently Sir Thomasson.
Zerofootprint Youth Calculator - http://calc.zerofootprint.net/youth/