The centre-left can block any Alliance policy if they join with the Sweden Democrats. Hence, they can threaten to bring the government down over things like Afghanistan and the budget, or if a motion of no confidence is launched.

SD might extract a political price from the Alliance for the promise not to do any of these things. But all this requires that SD forms a united front with the left on these issues.

On the other hand, if SD in any way pull the government down, they're taking a huge risk. On one hand they might well get more mandates after a new election, as they would get access to media in an entirely new way (censorship and discrimination against them has been widespread during this election).

On the downside, they might be seen as the people who caused the crisis and be punished by the voters for this. They might even be voted out of parliament, which would be an absolute disaster, as parliament is their ticket to the media, and to huge sums of government money the will recieve as party entitlements.

So it's a game of chicken.

Peak oil is not an energy crisis. It is a liquid fuel crisis.