As the mercury rises, staying cool becomes a real challenge. Try making this gorgeous desk fan to keep your energy costs down.

An ice cream cart uses solar panels to power its refrigeration unit.

Using an age-old method to cool the air, this terracotta "cold pot" could be an energy-efficient and low-maintenance alternative to conventional air conditioners.

The thermostat add-on lets consumers set a limit to what they want to spend on cooling and heating and then it controls the temperature to keep energy use in check.

The new technology would allow precise control over the transparency of windows and how much light is let in.

The smart thermostat will help people save even more money and help utilities curb peak demand loads.

This might be one of the smartest ways to use a smart thermostat.

The smartest features of a smart thermostat may actually be the pretty simple.

The dual source heat pump uses either the ground or the air as a heat source.

This ancient method is simple and cheap.

An event on Lake Tahoe promises "world class minds, radical innovation and kickass rock 'n roll". And solutions to the biodiversity crisis, too.

You are not alone. Even when you are...

Serious threats are endangering lightning bugs across the globe; and they are all thanks to humans.

These flat-packed rest-and-recovery units could take the load off hospitals in a hurry.

Last month, Catalan TV3 just aired a new documentary called "comprar, llençar, comprar", meaning "to buy, to throw away, to buy" in Catalan, right on time for the christmas shopping and the winter sales which started this week. You can now watch the

These days when your coffe machine breaks, it is usually cheaper and less hassle to just buy a new one. I was therefore pleasantly surprised about the repairability of my Presso coffee maker, which still keeps serving me off the grid!

Buying green furniture can be tricky, so we've lined up some tips to help you furnish your house.

Nobody cared much about this a few years ago. They do now.

Watering problems are the leading cause of poor health for houseplants; here’s how to give them what they need.

Carved pumpkins are susceptible to rot, but there are ways to stave it off.

You'll be surprised at the decorative potential contained within the recycling bin.

Especially when trees are newly planted, they need all the help they can get.

It's time to rewild the manicured garden – here's how to start.

WIth cooler weather and shorter days, your indoor plants could use a little help getting ready for the new season.

From sleep aids to pain relievers, here's how to grow your own natural remedies.

Colder weather provides some unique challenges for indoor plants; here's how to how to help them get through it.

From saucy to the divine, the origins of some flower names add even more to the loveliness of their blooms.

Even if doomsday never comes, these 20 plants are some of the most practical you can grow.

From watering needs to ideal temperatures, here's what to know to help your indoor plants survive the cooler months.

Why aren't people lining up for this enclosed solar powered e-cargo tricycle? It pushed every button.

The toxic red line that runs through this town -- as photographed by Palíndromo Mészáros -- is shocking evidence of what can go wrong.

A new book, Allowed to Grow Old, reveals beautiful portraits of something we don't get to see very often: Elderly farm animals.

In order to prevent future pandemics, we need to change our relationship with wildlife

Google and Save the Elephants teamed up to bring Street View to the Kenyan wildlife reserve to show its residents and spread the need for conservation.

Jellywatch.org has tapped into the power of citizen scientists to collect data on jellyfish populations and you can help.

Smaller, faster, cheaper! Single board computer (SBC) innovations are jumpstarting a whole new wave of DIY devices.

Spoiler: your city will be much warmer year round.

It's impossible for a human to know all of the hundreds of thousands of species of flowers on our planet, so Microsoft has developed flower learning software.

The machine with a mission exceeds everyone's wildest dreams

The findings could help us deal with environmental changes happening now and in the future.

Aircraft will have to fly new routes to avoid major bumps.

Telecommuting just isn't fashionable anymore; the "water cooler effect" is.

Researchers are developing computer simulations that can improve agricultural success.

The tech giant just agreed to purchase all of the energy from GE's Tullahennel wind farm.

Our photo of the day comes from Davis, California.

Our photo of the day comes from Calgary, Canada.

Made in Australia out of a solar-powered workshop, this gorgeous little home incorporates a great layout and clever features.

After a few big players entered the ring, the environment was spared some 1.5 billion plastic shopping bags in under 100 days.

Our photo of the day delivers a bit of winter reverie from the waters of Australia.

Our photo of the day provides a lesson in the origins of seashells.