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As has often been the case, the oil sands were different.

Oil sands are happening and you need to live with it.

These two countries have the world's largest deposits of oil sands.

Daily production of 1.5m barrels from the oil sands is expected to increase to 3.7mn in 2025.

Petroleum is not produced from oil sands on a significant level in other countries.

"In the oil sands, we may see overall emissions still increasing by 4 to 6 percent a year."

So why are the Canadian oil sands going to be developed?

The name was derived from the fact that four paying oil sands were believed to be present in the area.

What that has to do with the oil sands is utterly unclear.

It is notable as the original home of oil sands mining.

But the reality behind Canada's public energy and climate policy is the challenge of how to sell the tar sands.

Rather than consider "Are the tar sands really the best way to 'use' this land?"

The problem with this pipeline is that tar sands aren't a very nice way to get oil.

Are we going to invade Canada for the tar sands?

The production of tar sand is the main cause.

That brings me to this question of tar sands and oil shale.

But we have the facts on tar sands now, so I do not see any reason to delay.

In fact, the problem with tar sands is not just the emissions.

The tar sands represent just one example of incredible environmental destruction.

The tar sands are among the least efficient fuels on the planet.