The ad is running in Oregon ahead of the state's primary and was released ahead of a speech McCain will give on climate change today in Portland. The McCain camp is highlighting the Arizona Senator's stance on global warming as it kicks off its general election campaign.

The issue is thought to be a winner for McCain as the campaign moves to attract independents and siphon off younger voters from Barack ObamaBarack Hussein ObamaOvernight Cybersecurity: What we learned from Carter Page's House Intel testimony | House to mark up foreign intel reform law | FBI can't access Texas shooter's phone | Sessions to testify at hearing amid Russia scrutiny Russian social media is the modern-day Trojan horse Trump records robo-call for Gillespie: He'll help 'make America great again' MORE.

McCain is careful in the ad though to make clear that he does not think "high taxes and crippling regulation is the solution."

Here is the transcript:
ANNOUNCER: Our environment in peril,
Oil and food prices out of control,
Climate change wreaks havoc with deadly weather.
One extreme thinks high taxes and crippling regulation is the solution.
Another denies the problem even exists.
There's a better way.

John McCainJohn Sidney McCainGOP rushes to cut ties to Moore GOP strategist: 'There needs to be a repudiation' of Roy Moore by Republicans World leaders reach agreement on trade deal without United States: report MORE: I believe that climate change is real.
It's not just a greenhouse gas issue.
It's a national security issue.
We have an obligation to future generations to take action and fix it.
I'm John McCain and I approve this message.