And they are simply unsure what conditions might cause a repeat or whether the rapid human release of greenhouse gases is among them. (green.blogs.nytimes.com)
Studies have shown that releases of greenhouse gases in recent years have played a big role helping to warm the planet. (sciencenewsforstudents.org)
Poor land use practices can and have caused massive releases of greenhouse gases (GHGs) from carbon stocks. (ifoam.bio)