Major sources of greenhouse gas emissions from human activities include power generation (about 25 per cent of all emissions), transport, industrial activities, deforestation and agriculture. (earthjournalism.net)
They simply don't have the power to reduce carbon emissions from human activities, making it nearly impossible for them to deal with the sea ice decline face on. (natureworldnews.com)
His video illustrates what carbon dioxide emissions from human activities would look like if you could watch the gas volume accumulate in front of you in real - time. (dotearth.blogs.nytimes.com)