Arctic shrubs may cause greenhouse emissions

Well, this certainly is not good news. I think we expected the "dark surface" part of things, but I was unaware of the issue related to deeper roots of plants.

The article says that the research was headed up by a Canadian scientist, but I missed the affiliation. Anyone know?

“The shrubs are a dark surface and they reflect less of the sun’s radiation back into the atmosphere,” he said.

Shrub roots, which penetrate deeper into the soil than grass roots, are also likely to break up permafrost and allow water to trickle down into it.

”All of the evidence is that that leads to the release of stored carbon into the atmosphere,” Hik said.