As world leaders prepare to make major promises on climate change, CNN wants to know the little ways that you try to help the planet. Here are our ideas - what are yours? Share your tips with <a target="_blank" target="_blank">#CNNGoGreen</a>. <br /><br />It's estimated that over 90 million pieces of clothing end up in landfills each year. You can reduce your impact by avoiding synthetic fibers (made from damaging chemicals) and buying clothes made with natural fibers such as cotton or wool, which break down in landills. And as fashion sustainability champion Vivienne Westwood said simply, "Choose well, buy less."
#CNNGoGreen —
As world leaders prepare to make major promises on climate change, CNN wants to know the little ways that you try to help the planet. Here are our ideas - what are yours? Share your tips with #CNNGoGreen.

It's estimated that over 90 million pieces of clothing end up in landfills each year. You can reduce your impact by avoiding synthetic fibers (made from damaging chemicals) and buying clothes made with natural fibers such as cotton or wool, which break down in landills. And as fashion sustainability champion Vivienne Westwood said simply, "Choose well, buy less."
Beef is one of the livestock that takes a big toll on the environment. The <a target="_blank" target="_blank">UN estimates </a>that cattle rearing and slaughtering accounts for 65% of the meat industry's greenhouse emissions. <br />It's not just in terms of the methane cows produce -- they also require lot more water and land than sheep, chicken or pigs, which causes deforestation. <br />
#CNNGoGreen —
Beef is one of the livestock that takes a big toll on the environment. The UN estimates that cattle rearing and slaughtering accounts for 65% of the meat industry's greenhouse emissions.
It's not just in terms of the methane cows produce -- they also require lot more water and land than sheep, chicken or pigs, which causes deforestation.
Buying something brand new uses up resources, while trashing something causes further waste. Electronics can be repaired, clothing can be mended and furniture upcycled or restored. <br />
#CNNGoGreen —
Buying something brand new uses up resources, while trashing something causes further waste. Electronics can be repaired, clothing can be mended and furniture upcycled or restored.
Put your money where your mouth is! Commercial interest in renewables is on the rise. The Collaborating Centre for Climate & Sustainable Energy Finance <a target="_blank" target="_blank">reported</a> a 17% surge in global investments in green energy last year, which is now worth $270billion worldwide.
#CNNGoGreen —
Put your money where your mouth is! Commercial interest in renewables is on the rise. The Collaborating Centre for Climate & Sustainable Energy Finance reported a 17% surge in global investments in green energy last year, which is now worth $270billion worldwide.
If you can't avoid producing significant emissions, try to make up for it. This isn't only through planting trees -- you can also use green energy in your home or invest in hydro or wind power.
#CNNGoGreen —
If you can't avoid producing significant emissions, try to make up for it. This isn't only through planting trees -- you can also use green energy in your home or invest in hydro or wind power.
The transportation sector accounts for 27% of all greenhouse gas emission in the <a target="_blank" target="_blank">U.S. alone</a>. So unless the face-to-face meeting is absolutely necessary, stay put.
#CNNGoGreen —
The transportation sector accounts for 27% of all greenhouse gas emission in the U.S. alone. So unless the face-to-face meeting is absolutely necessary, stay put.
<a target="_blank" target="_blank">According to British NGO Waterwise</a>, some old-fashioned toilets use 13 liters of water every flush -- over 6 times the amount of the recommended daily use. Using a dual flush toilet can save water. Switching to a "low flow" shower head reduces the amount of water usage, and maintains the power of a normal shower. <br />
#CNNGoGreen —
According to British NGO Waterwise, some old-fashioned toilets use 13 liters of water every flush -- over 6 times the amount of the recommended daily use. Using a dual flush toilet can save water. Switching to a "low flow" shower head reduces the amount of water usage, and maintains the power of a normal shower.
The number of vehicles available through car-sharing schemes looks set to increase -- helping you save money while also saving the planet. With handbags, outfits, power tools and bikes all available to borrow, the "shareconomy" is in full swing.
#CNNGoGreen —
The number of vehicles available through car-sharing schemes looks set to increase -- helping you save money while also saving the planet. With handbags, outfits, power tools and bikes all available to borrow, the "shareconomy" is in full swing.
International shipping and transport <a target="_blank" target="_blank">contributes</a> to around 25% of the CO2 emissions of most developed countries. The ingredients of local food and drinks are easier to trace too, while you can feel good about supporting local producers.
#CNNGoGreen —
International shipping and transport contributes to around 25% of the CO2 emissions of most developed countries. The ingredients of local food and drinks are easier to trace too, while you can feel good about supporting local producers.
Heating not only produces CO2, but also nitrogen oxides -- which are <a target="_blank" target="_blank">300 times as powerful</a> in warming the planet. <a target="_blank" target="_blank"> In the U.S</a>., 12% of all sulfur dioxide and nitrogen oxides emissions are caused by cranking the heat. Added bonus: Using smart tech to save energy in the home means you'll save cash on bills. What are your green tips? Let us know on Facebook, Twitter or Instagram with the hashtag <strong>#CNNGoGreen</strong>.<br /><em>Will Worley contributed to this story.</em><br />
#CNNGoGreen —
Heating not only produces CO2, but also nitrogen oxides -- which are 300 times as powerful in warming the planet. In the U.S., 12% of all sulfur dioxide and nitrogen oxides emissions are caused by cranking the heat. Added bonus: Using smart tech to save energy in the home means you'll save cash on bills. What are your green tips? Let us know on Facebook, Twitter or Instagram with the hashtag #CNNGoGreen.
Will Worley contributed to this story.