good idea to consume less water is to collect water from rain on rooftop of every building and purify/clean with filter first. then use it for washing dishes, laundry, shower etc, saves money and water!

A very interesting discovery by the Missouri Tree Ring Laboratory on how to reduce CO2 emissions in the atmosphere. If trees are submerged in freshwater aquatic systems they can store carbon for an average of 2,000 years. If they fall in a forest that number is reduced to an average of 20 years. We could store trees underwater in ways that could last tens of thousands of years if we wanted to put some thought in how to do it. Just a thought here. The article doesn't explain whether this holds true if the tree is submerged in seawater. Seawater storage could be a solution, storing thousands of acres of trees in the bottom of the sea might also help replenish food sources for fish and marine life. (read more)

I think our nature is too commercialized already. Please remove vending machines from hollowed-out trees! They are not objects for company marketing, so sad...

What if we could create some kind of artificial partial solar eclipse?

This will reduce the amount of solar energy that gets to the earth.

I think I had read somewhere that some people had come up with the idea of creating large space-blankets that will orbit the earth and reflect sunlight back to the sun. (read more)

I would like to vote for President the candidate who will immediately upon taking office turn the White House into a green eco-friendly building with solar panels, wind-energy turbines, energy-efficient light-bulbs and all all the latest, hi-tech clean renewable energy-efficient gadgets American industry has invented. A White-House showcasing clean energy independence to the nation. (read more)

Sunscreen in open area swimming pools is usually banned because the oil or cream will leak into the water. So what about a new type of water-repellent sun-screen that sticks to the skin and never leaks into the water? When you think about how much chemical sun-screen is leaked into sea water every year from people that go to the beach to swim, you then appreciate its eco-friendly use outside the swimming pool as well (read more)

imagine how many trees can be saved if printer settings did not give the option of printing on one side only. a simple adjustment in the settings to make all printers print using both sides of paper means less paper would be consumed. it's probably about half the amount we print now. if you think about it that's a lot of paper!

Public lighting when no one is around is energy wasted. Lights that are on only when people walk in the area is better use of energy. Shopping malls use movement detectors to open/close entrance doors or activate use of automatic stairs. Why not use the same for city lighting?

MIT scientists discovered a new and easy way to store and use solar energy even when the sun is not shining. I am not a scientist so I can't tell how big a breakthrough it is. I thought to post the link to the source and hear your comments on the future of solar energy or clean energy in general. It's obvious to everyone that we have to move to clean energy but there is a big debate as to which form of clean energy we should move. Bio fuels and corn ethanol don't seem to be the right move. Could solar energy be it? Any ideas on how solar energy can be scaled? Is anyone aware of any arguments against using solar energy? (read more)

I live in Sydney, and the City Council has removed a lot of public bins to combat the problem of littering. It seems when people see a bin that's full, they'll just continue chucking stuff on top of it even if it means it will fall off onto the ground. What we're expected to do now is to take our trash home. Which is what I do. (read more)