It was a laughable endorsement by the New York Mayor. Bloomberg decided after 3+ years that Obama deserves to be re-elected based on his record on global warming. 
Apparently the Mayor hasn’t been doing his homework. The President’s record on dealing with global warming is dismal at best. You don’t have to believe me. Just listen to those who have been following this issue.
Former Vice President, Al Gore, is famous for his vastly influential pro-environment film “An Inconvenient Truth.” What does he think of Obama’s stand on global warming:
“President Obama has never presented to the American people the magnitude of the climate crisis,” Gore says. “He has not defended the science against the ongoing withering and dishonest attacks. Nor has he provided a presidential venue for the scientific community … to bring the reality of the science before the public.”
MotherJones is a well known leftist news outlet: “Obama Strikes Out on Global Warming”
Here’s what the NationalJournal has to say:
President Obama and presumptive GOP opponent Mitt Romney seem to have “reached a point of détente on the issue,” said Dirk Forrister, who worked on climate issues in the Clinton administration and now heads the International Emissions Trading Association. “Neither of the presidential candidates seems to want to talk about it, and yet it is an issue that both of them would have to deal with.”
Raw Story is another principled left-wing news outlet. They’ve chosen to be fooled by Obama’s last minute election ploy:
The invitation to the White House in the spring of 2009 struck Barack Obama’s allies in the environmental movement as a big moment: a clear sign that climate change was on his radar and that the president was eager to get to work.
The event was indeed a turning point, but not the one campaigners expected. Instead, it marked a strategic decision by the White House to downplay climate change – avoiding the very word – a decision some campaigners on the guestlist say produced the strange absence of climate change from the 2012 campaign, until hurricane Sandy blew it right back on the political agenda.
[...]There was no mention of climate change during six hours of televised debate. Moderators failed to bring up the question, and Obama and Mitt Romney made no effort to fill in the gaps – even during a long and heated exchange about offshore drilling and coal.
David R. Baker, San Francisco Chronicle:
Global warming may be the biggest topic that neither President Barack Obama nor GOP presidential candidate Mitt Romney wants to touch.
Obama devoted all of four sentences to climate change in his speech at the Democratic National Convention last month. Romney rarely mentions it at all.
It’s a stark change from the 2008 presidential race, when both Obama and his Republican opponent, John McCain, preached the need to reduce greenhouse gases. And environmentalists are furious the issue is largely ignored.
“The silence of Governor Romney and President Obama on climate change is deafening,” said Erich Pica, president of the environmental group Friends of the Earth Action.
Michael Mann is a climate scientist. And he is…’Disappointed’ In Obama’s Global Warming Record’
This article appears in the HuffingtonPost:
McKibben was, of course, referring to climate change. His exasperation echoes a wider movement that by now has grown not just weary, but vaguely astounded at the lack of high-level dialogue on a topic that, as they see it, fundamentally influences — and therefore ought to trump — all others, particularly at a time when the nation is preparing to elect a president.
Earlier this month, two activist groups launched a website, ClimateSilence.org, which tracks the candidates’ public statements on global warming over the years. By any measure, President Barack Obama fares far better than his Republican challenger, Mitt Romney, who has morphed from an early supporter of clean energy, fuel efficiency and emissions caps to a climate change agnostic given to openly ridiculing the issue.
But the activists also indict Obama, under whose leadership, they say, climate change has gone from an urgent matter to a mere afterthought.
This is how ThinkProgress, another thoughtful left-wing news outlet, sees the issue. Here’s a headline:
Challenged By MTV, Obama Says He Is ‘Surprised’ By His Own Climate Silence*
Here’s how the NY Times sees it:
Even after a year of record-smashing temperatures, drought and Arctic ice melt, none of the moderators of the four general-election debates asked about climate change, nor did either of the candidates broach the topic.
Throughout the campaign, Mr. Obama and Mr. Romney have seemed most intent on trying to outdo each other as lovers of coal, oil and natural gas — the very fuels most responsible for rising levels of carbon dioxide in the atmosphere.
ThinkProgress mocks the President’s lack of presence on the question of global warming:
JR: Very funny. Yes, carbon pollution is invisible, just like you. But its effects have become painfully visible now — a climate system on steroids with record-smashing extreme weather, including droughts, heat waves, wildfires and deluges. Why is no one talking about that?
IO:
JR: Just as I suspected. I knew the White House communications team had muzzled just about everyone in the administration on the subject — and had been telling major progressive political leaders not to talk about climate change during the debate about the climate bill. So they still are. As you must know, however, that’s just nutty. Pretty much every major poll and every major social scientist makes clear that climate action and clean energy are wedge issues, ones that split the tea party extremists from Independents and even many moderate Republicans:
