'Problem wells' source of greenhouse gas at unexpected stage of natural gas production

High levels of the greenhouse gas methane were found above shale gas wells at a production point not thought to be an important emissions source, according to a study jointly led by Purdue and Cornell universities. The findings could have implications for the evaluation of the environmental impacts from natural gas production.

Researchers discover long-lived greenhouse gas

Scientists from U of T's Department of Chemistry have discovered a novel chemical lurking in the atmosphere that appears to be a long-lived greenhouse gas (LLGHG). The chemical – perfluorotributylamine (PFTBA) – is the most radiatively efficient chemical found to date, breaking all other chemical records for its potential to impact climate.

Claim: Rivers and streams release more greenhouse gas than all lakes

Rivers and streams release carbon dioxide at a rate five times greater than the world's lakes and reservoirs combined, contrary to common belief. Research from the University of Waterloo was a key component of the international study, the findings of which appear in a recent issue of the journal Nature.

The tundra - a dark horse in planet Earth's greenhouse gas budget

Vast areas on the Northern Hemisphere are covered by tundra. Here, dwarf shrubs, sedges, mosses etc. thrive on top of permafrost in areas where only the uppermost soil layer thaws during the short Arctic summer.

Reducing greenhouse gas emissions 80% by 2050

The nonprofit National Research Council (NRC) recently issued a report on how America can reduce its petroleum, or gasoline, use and greenhouse gas emissions by vehicles by 2050.

CO2 levels in our atmosphere reach record high

Concentrations of greenhouse gases in our atmosphere, driven by man-made carbon emissions, reached a record high in 2011, according to the World Meteorological Organisation (WMO).  

Get on your bike and save the world?

The European Cyclists' Federation has taken the trouble to calculate just how far greenhouse gas emissions could be cut if we all followed their example.

California to deploy CO2 monitoring stations

Next time you check the weather on your desktop icon or mobile phone app, will you be ale to get an update on the carbon dioxide and methane concentrations in the air, as well?