A recent NASA study concluded that Alberta, Saskatchewan, and Manitoba, Canada will see major ecological change to local grasslands and forests. This ecological shift will result in fewer wetlands and trees across the majority of the Canadian countryside. "By about 2100, the climate change projections that we have today would suggest that there would be pressure on that grassland so prevalent in [the Canadian Prairies] to move further northward — and at the expense of the forest moving further northward as well," said NASA climate scientist Duane Walliser. Climate change will also affect plants and animals south of Canada, causing them to migrate north into Canada. Longer and warmer summers are already allowing mountain pine beetles and deer ticks to migrate north into Canada, and biologists are concerned that global warming will open the borders to invasive species.

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