Cooking is a major source of carbon emissions all over the world, from wood fires to gas burners. It's also bloody dangerous in some parts of the world. Smoke from open cooking fires kills more than eight times as many people as malaria.
Wood fired cook stove that uses ~40-50% less fuel than traditional fires and emits ~1/3 the CO2. Learn how to build one! Check out their research center at [Aprovecho](http://aprovecho.org/).
An innovative portable ultra-efficient solar cooker that can be used for backpacking, boating, car camping, etc.
Discover a great way not only to use less energy in food preparation, but to serve tastier and more nutritious meals at the same time. Any recipe that calls for boiling, simmering, steaming, or roasting will often taste better— [hot from the haybox](https://www.motherearthnews.com/diy/haybox-cooking-zmaz80jfzraw) — than it would with regular stove preparation ... and you'll save heat energy at the same time. You can pick up a pot-sized [thermal cooker](http://www.cookingworld.biz/thermal-cooker-guide/), or simply put a blanket in a cooler.
A solar food dehydrator is a device that removes moisture from food to aid in its preservation. You can [buy a simple one](https://www.kickstarter.com/projects/mixedmediaeng/dryceratop-solar-food-dehydrator-for-mason-jars/description) or make your own. Food drying is a method of preserving fruit, vegetables, and animal proteins that has been practiced since antiquity.
Insulated solar oven that can cook food just like a regular oven.