Sentence examples similar to six extra tons from inspiring English sources
A study led by environmental-engineering professor Denise Mauzerall found that while substituting gas in all residential areas would dramatically reduce air pollution — averting some 30,000 deaths annually — the production of synthetic natural gas from coal could release some 150 million extra tons of carbon dioxide and other greenhouse gases per year.
That's about 1 million extra tons of trash.
One billion extra tons per year is a lot, but it is still small compared to other sources of greenhouse gases — humanity puts almost 30 billion tons of CO2 into the atmosphere every year.
The 10-year gap between leading and lagging proposals makes a major environmental difference: waiting for the developing countries to freeze in 2031, would allow at least 33 billion extra CO2-eq tons of HFC use--equal to world's CO2 output for an entire year.
Four extra bank holidays.
Because, ten extra pounds.
Three extra million over four years.
