What to expect from climate change

By JACK NISSEN & KAREN HOPPER USHER

Capital News Service

LANSING — The planet got hot, fast. Each of the last three years set records in terms of mean global temperature over the past 150 years.

On average, the Great Lakes region is 2 two degrees warmer than it was in 1912, according to the Great Lakes Integrated Sciences Assessment, which is produced by the University of Michigan and Michigan State University. By 2100, average temperatures could increase by 11 degrees Fahrenheit.

It’s rare, but the planet’s overall climate has changed rapidly in the past. Volcanic explosions and meteor impacts did the trick then. This time around it’s us. We’re using too many fossil fuels, which puts more greenhouse gases into the atmosphere and heats up the planet faster than before, according to the fifth assessment report from the Intergovernmental Panel on Climate Change.

A rapidly warming planet introduces an array of impacts that swirl in uncertainty. While experts try to predict what to expect, nothing is set in stone.

“You’re literally looking at an ecological experiment taking place in front of our eyes,” said Jeffrey Andresen, Michigan’s state climatologist. “One thing that we do know about projections for the future is all of them – and there are no exceptions – all of them call for warmer mean temperatures.”

The challenges of predicting environmental impacts didn’t deter one magazine from making the attempt. Michigan came out of that exercise looking good.

A Popular Science video last December concludes that Michigan will be the best place to live in the United States in 2100. That’s because the state is among the areas likely to avoid the increasing threats of droughts, mosquitoes, hurricanes, floods and forest fires facing the rest of the country because of global climate change, according to the magazine. In the coming years, only parts of North Dakota, Minnesota, Wisconsin, Michigan, New York, Vermont and Maine would mostly avoid these threats.

“We wanted to give a simple visual to show what some of the near-term consequences of global warming climate change will be,” said Peter Hess, the author of the magazine story.

Because we often think of climate change as something far off, we think it’s something our children will have to contend with, Hess said. Well, no. There will be significant effects in our lifetime.

Is Michigan the place to weather the climate? Tough call.

Michigan fares pretty well compared to other states, Andresen said. Throw in all of the potential problems, such as those mentioned in Popular Science’s video, and look at the collective threats, Michigan historically does very well.

But that doesn’t mean the Great Lakes region, or even the parts of the states mentioned in the video, are safe from problems of their own.

Predictions concerning future weather events vary, but both Popular Science and Andresen agree, more extreme weather is coming.

Experts predict erratic precipitation. That could mean flooding. It could mean droughts. Only time will tell.

Among the questions needing answers: How will living things interact with their changing environment? What will change with Great Lakes hydrology? Will there be longer growing seasons?

And what will happen to tourism?

Jack Nissen and Karen Hopper Usher write for Great Lakes Echo.