Your guide
to a cleaner,
cooler future

The Cool Down is all about making it easy to help yourself while helping the planet💡

Weekly Spotlight

💡 Start your off-grid journey with upgrades and practices that make your home more self-reliant

Get access to cheap, off-grid power with solar panels

2.4M participants

Start your own organic garden for fruit and veggies

321k participants

"It brings me joy to interact with the natural environment in this small way in my urban house."

Collect free rainwater to keep your garden thriving

1.2M participants

Create your own natural cleaning products at home

323.6k participants

Capture drinking water from the air with hydropanels

283.1k participants

READ MORE

If you're considering a switch to solar, then the first big decision you'll need to make is how you want to access this cheap, clean, abundant energy source.
  • TCD 101 TCD 101

These two solar energy options could save you tens of thousands — here's everything to know about making the switch

  • Home Home

Plumber's take: Heat pump water heaters are the most efficient water heaters

  • Tech Tech

Solar panels not only help crops grow, they offer crucial wind protection

  • Home Home

Homeowner discovers Tesla Powerwall plus solar delivers maximum savings: 'Power our entire home'

  • Tech Tech

As utility bills skyrocket, heat pumps gain popularity as an efficient, money-saving solution

  • Home Home

Homeowners can have high-tech rooftop solar panels with no upfront costs thanks to this startup


💡Explore the TCD Guide


The TCD Guide makes it easier than ever to help yourself while helping the planet.

Join us in exploring over 100 ways to save more, waste less, and improve your life — everything from upgrading your home to eating better food to making money on your old stuff.

Whatever your goals, we can help you make smart choices and connect you to trusted partners.

Explore

TCD Guide

COOL BRANDS

Person washing dishes with dish soap and sponge.
  • Home Home

Dishwasher expert reveals game-changing product that can add up to major savings: 'A better dishwashing experience'

Solar panels on house.
  • Business Business

New impact report reveals how millions of US homeowners are slashing energy bills: 'Helping families ... take control'

A woman and a man, Mary-Ann Rau and Brad Hall, sit on the floor, smiling together in a warmly lit room.
  • Business Business

Neighbors design new heating and cooling system with rapid setup: 'Eight times faster to install'


Cool Divider

LATEST STORIES

A tractor plows a dusty field against a backdrop of mountains and a sunset sky.
  • Business Business

As oil prices spike, over half of farmers in South and Midwest can't afford fertilizer

Aerial view of a the Tesla Gigafactory in Austin, Texas, with smoke rising, surrounded by greenery and parking lots.
  • Business Business

'It's alarming': Tesla's Gigafactory water usage spikes by 200M gallons in 2 years

A young child sits at a table, focused on a smartphone, wearing a light-colored shirt with vehicle patterns.
  • Business Business

Minimum age to use the Internet? It could happen

Jeff Bezos, with a shaved head and wearing a navy blazer, speaks with a neutral expression against a blurred background.
  • Business Business

Jeff Bezos pledged to donate most of his money in his lifetime. To date, he's given away 2%

A woman in a pink sweater gestures playfully while discussing solar energy in a video call with an EnergySage adviser.
  • Home Home

'Like ... Kayak, but for solar': Homeowner reveals how she avoided sales calls while going solar

A stack of cardboard boxes with the U.S. Fish and Wildlife Service emblem, alongside a pile of discarded shark fins.
  • Outdoors Outdoors

50k dried shark fins disguised as car parts seized at US ports, worth over $1M

An underwater view of a deep blue ocean with soft, blurred, light filtering through a layer of ice above.
  • Outdoors Outdoors

Unmanned submarine detects eerie structure under Antarctica, then loses contact

Two Tesla battery units mounted on a beige wall, alongside various electrical meters and connections.
  • Home Home

Useful tip when considering a solar lease, read the contract closely

A field of sunflowers silhouetted against dramatic clouds and a colorful sky at dusk.
  • Outdoors Outdoors

Startup's 'reflective satellites' could light up night sky, impact your sleep

A young woman speaks passionately to an audience during a community empowerment event.
  • Tech Tech

17-year-old student develops tool to rapidly diagnose malaria, other blood diseases

A man with a baseball cap gestures to a mini-split unit on a wall behind him while speaking in a room.
  • Home Home

Mini-split HVACs are like cooking on a single burner as opposed to lighting an entire stove

Workers are harvesting romaine lettuce in a field with boxes for packaging and a tractor nearby.
  • Tech Tech

'We're harvesting the sun and producing electricity': Farmers find their newest crop

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