Avoiding a Climate Tipping Point

  • If the global temperature goes past 2 degrees Celsius - the danger point - we might not be able to get the climate back to a more natural state (Photo courtesy of NASA)

Two new studies in the journal Nature are trying to answer: how much is too much when it comes to global warming? Rebecca Williams reports:

Transcript

Two new studies in the journal Nature are trying to answer: how much is too much when it comes to global warming? Rebecca Williams reports:

These studies look at what we’d have to do to keep global temperatures from rising more than two degrees Celsius.

That’s considered the danger point for climate change.

Past that point we might not be able to get the climate back to a more natural state.

These papers suggest that we’ve got to cut back on burning fossil fuels a lot. They say by 2050, countries like the US need to cut emissions by more than 90% below what they were in 1990.

The White House and Democratic leaders in Congress have proposed cutting emissions by less than that – 80%.

The researchers make the point… of all the coal and oil and natural gas in the ground that we know about, we can only burn one fourth of that amount by 2050.

We’re burning it at a much faster rate.

The studies say, at the current rate, we could be past that tipping point in less than 15 years.

For The Environment Report, I’m Rebecca Williams.

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Candidates’ Promises for Great Lakes Cleanup

  • Both Obama and McCain say they support fixing the Great Lakes (Photo by Lester Graham)

Barack Obama and John McCain
are greening up their effort to win
some battleground states in November.
The Obama campaign has released a five
point plan for protecting the Great Lakes.
Chuck Quirmbach reports:

Transcript

Barack Obama and John McCain
are greening up their effort to win
some battleground states in November. The Obama campaign has released a five
point plan for protecting the Great Lakes.
Chuck Quirmbach reports:

Great lakes advocates have been urging Washington to approve a 20 billion dollar restoration package for the lakes.

Illinois senator Obama says he’s willing to come up with an additional 5 billion dollars. He’d get the money by rolling back tax breaks for oil and natural gas companies.

Michigan Democratic senator Debbie Stabenow is helping promote Obama’s plan. She says it goes well beyond the Bush Administration’s unmet promises to pay for lakes cleanup.

“What we are seeing through this plan is actually putting the dollars into a trust fund so the dollars would be there.”

Senator Obama also wants a coordinator of Great Lakes programs to tackle toxic hot spots, invasive species and enforcing a compact to protect the lakes from large water withdrawals.

The McCain campaign says Senator McCain supports fixing the Great Lakes, but he’s not
ready to commit to an amount yet.

For The Environment Report, I’m Chuck Quirmbach.

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