This was imposed by Edmonton in 2015 after negotiations with tar sand
producers and the coalition of environmental NGOs who led the anti-Keystone XL campaign.
bringing another million barrels per day of tar sand
crude oil also known as "diluted bitumen" to Gulf Coast refineries.
Northern Alberta contains the largest known deposits of tar sand
, in an area roughly the size of Florida that lies under some of the largest old-growth forest remaining in the world.
Recent rises in barrel prices and developments in oil exploration have enabled companies to extract oil from earth - known as tar sand
- in Canada and Venezuela.
It sounds like an appealing energy solution to some, but the environmental costs of extracting oil from Alberta's tar sand
would exact a heavy toll," wrote O'Neill.
Indigenous people in Canada have been badly affected as the tar sand
is mined near their settlements and has polluted hunting grounds.
Researchers working on an experiment for a Nasa mission to Mars realised their method for removing organic material from rocks could be used on Earth to process tar sand
- rock mixed with bitumen.
is composed of a mixture of bitumen, which makes up about 10-20% and about 80-85% mineral matter including sands, clays and 4-6% water.
Still, he notes that neither the specific clay-coal tar mixture nor the tar sand
in general provides a perfect spectral match for Iapetus' dark stuff.
Even if you care nothing about climate change and human health, you should still support a phase-out of Alberta's tar sand
What is essential in looking at the project is that Canada will produce tar sand
crude regardless of whether the U.