Hundreds of millions of cars around the planet are releasing vast amounts of carbon dioxide into the atmosphere every day, causing ocean acidification and global warming. (dotearth.blogs.nytimes.com)
As well as its ecological impact, deforestation also releases vast amounts of carbon dioxide - ten percent of all global greenhouse gas emissions. (earthtimes.org)
The only way the world is going to be able to limit warming to 2 °C is by sucking vast amounts of carbon from the atmosphere, using technology that does not yet exist. (newscientist.com)