What do the 2010 heat wave in Russia, last year's Texas drought, and the 2003 heat wave in Europe have in common?
"We are reaching the tipping point and the tipping point according to most scientists will be in less than 10 years. We don't have much time," says human rights and environmental campaigner, Bianca Jagger.
Photographer Roger Moukarzel's exhibition showcases his work highlighting the effects of global warming in Sweden.
Mountain countries from around the world are seeking a common voice in global climate change negotiations to draw attention to the vulnerabilities of mountain areas.
Imagine you are sitting in your office simply doing your job and a nasty e-mail pops into your inbox accusing you of being a fraud. You go online and find that some bloggers have written virulent posts about you. That night, you're at home with your family watching the news and a talking head is lambasting you by name. Later, a powerful politician demands all your e-mails from your former employer.
For Canada, the cost of either meeting its commitments under the Kyoto Protocol, or failing to do so, was too much to bear.
China is open to accept a legally binding global agreement to reduce carbon emissions. CNN's Robyn Curnow explains.
An agreement reached Sunday in South Africa will help tackle the challenges of climate change for years to come, the United Nations' chief said.
Todd Stern talks to CNN's Robyn Curnow about the politicalization of climate change in the U.S.
CNN's Robyn Curnow reports from the 17th U.N. Climate Change Summit in Durban, South Africa.
They are the world's cultural capitals, the nerve centers of innovation and the engine rooms of economic growth, but could cities also hold the key to cutting carbon emissions long-term?
A second batch of e-mails thought to originate from the UK research unit involved in the "Climategate" controversy in 2009 has been posted on the Internet.
An independent study of global temperature records has reaffirmed previous conclusions by climate scientists that global warming is real.
Climate change is shrinking many plant and animal species and is likely to have a negative impact on human nutrition in the future, according to a new study.
A few years ago I came across a newspaper article about illegal human trafficking into the EU.
The Supreme Court on Monday unanimously tossed out a massive lawsuit brought by several states against private power companies whose greenhouse-gas emissions are accused of presenting a "public nuisance."
The Supreme Court appeared reluctant Tuesday to allow a massive lawsuit by several states to proceed against private power companies whose greenhouse-gas emissions are accused of presenting a "public nuisance."
The pace at which the Greenland and Antarctic ice sheets are melting is "accelerating rapidly" and raising the global sea level, according to findings of a study financed by NASA and published Tuesday.
Two major droughts in Brazil's Amazon region in the last six years threaten to undermine its role as the planet's most important carbon sink and a vital brake on climate change, according to new research.
The business lobby, derided by environmentalists for opposing last year's climate change bill, put out an energy plan Tuesday that drew praise from fossil energy industries and threw a few bones to the renewable sector.
CNN's Becky Anderson asks a panel of climate change fighters about what they're doing to tackle climate change.
I recently returned to Amsterdam from the latest round of U.N. climate talks in Cancun, Mexico, and found this city of canals covered in snow. It was a beautiful sight. Yet rather than filling me with joy, it caused me concern.
Of all the subjects covered by the U.S. diplomatic cables obtained by WikiLeaks, climate change appears to have generated the most frustration, anger and pessimism.
Mayors from around the world have signed a voluntary pact committing them to reduce urban greenhouse gas emissions at a climate summit in Mexico City.
Mayor Lois Jackson, Delta, BC, Canada, on reducing carbon emissions by promoting green jobs.
There is a striking contrast between the issues being discussed at the climate talks in Cancun, Mexico, this week, and news reports of the views voiced by some of the incoming freshmen to the House of Representatives.
In June, CNN's Anna Coren asked the outgoing U.N. climate chief if a deal can be reached at the next climate talks.
Industries that emit large amounts of greenhouse gases don't expect any new restrictions from the incoming U.S. Congress or the ongoing international climate talks in Cancun, Mexico.
A rise in global temperatures of four degree Celsius is likely to occur during the 21st century causing "devastating impacts" if greenhouse gas emissions continue rising at the current rate, according to a group of international scientists.
The latest round of United Nations climate change talks begins Monday in the coastal resort city of Cancun, Mexico.
Evidence of man-made warming has increased in the past year, according to one of the world's leading climate research centers.
The next round of international climate meetings begin Monday in Cancun, Mexico, and they will likely determine the future for global action on climate change -- including whether the United Nations will remain at the core of an international regime.
Governments must make bolder and more binding commitments to reduce carbon emissions, according to a new United Nations report.
It's no secret that many Republicans are deeply skeptical of global warming.
City mayors from all over the world will be attending the World Mayors Summit on Climate in Mexico City later this month to pledge their commitment to combating global warming.
The World Mayor's Summit highlights action to combat climate change in urban areas. What would you ask city leaders?
Representatives from about 200 countries wrapped up a meeting in China on Saturday on climate change and said they had moved closer to defining what could be achieved at a later conference.
In the early 1990s, when Michael Mann was at Yale working on his Ph.D. in the geology and geophysics department, he became fascinated with theoretical climate modeling. By studying data inferred from ancient sources like tree rings and coral and ice cores, he could understand natural fluctuations in climate over the eons. Mann envisioned a quiet career in the halls of academe. In 1995 he made a big splash in paleoclimatology with his co-publication in Nature of -- wow! -- "Global Interdecadal and Century-Scale Climate Oscillations During the Past Five Centuries." So what's a nerd like him doing at the center of a raging debate over academic freedom? "I had absolutely no idea what I was bargaining for," Mann told Fortune.
Representatives from about 200 countries start meeting on Monday in China to narrow differences on climate change and grapple with extreme weather such as rising temperatures and melting polar icecaps.
If Republican leaders were serious -- and gutsy -- about using the Gulf oil spill as an opportunity to put the nation on a sane energy course, they'd pull out a little-noticed bill sponsored by Arizona's Jeff Flake and South Carolina's Bob Inglis and plop it atop their 2010 campaign book.
Is the record-shattering heatwave that has been blamed for the death of thousands in Russia somehow related to the devastating flooding in Pakistan?
A NASA scientist looks at whether heat waves, wildfires, flooding and breaking icebergs are somehow related.
Australian Prime Minister Julia Gillard on Friday embraced the same policy on climate change that her predecessor failed to pass, but said in a campaign speech that any action would be delayed until at least 2012.
Muir Russell summarizes the key findings of an independent report into leaked emails from the University of East Anglia.
An independent report released Wednesday into the leaked "Climategate" e-mails found no evidence to question the "rigor and honesty" of scientists involved.
The controversy known as "climategate" erupted in November 2009 with the publication of more than 1,000 e-mails to and from scientists at the Climatic Research Unit (CRU) of the University of East Anglia in eastern England.
An independent report into leaked e-mails that appeared to question climate change data is due to be published Wednesday.
A key Republican senator, instrumental in climate change negotiations in the Senate, has indicated that getting a bill passed this year with bipartisan support is a priority.
The U.S. Senate engaged in a heated debate Thursday on an issue at the heart of the fight over energy reform: whether the Environmental Protection Agency should have the authority to impose clear limits on the emission of greenhouse gases.
Never let a good crisis go to waste.
Climate scientists are getting desperate. After years of enduring politically motivated attacks, they are still scrambling to defend their findings.
Among the world's biggest electronics companies, who will be the first to go green? It certainly won't be Nintendo, as the Japanese corporation famous for its game consoles came in dead last in Greenpeace's latest Guide to Greener Electronics.
Indonesia's president on Wednesday announced a two-year moratorium on new concessions to convert virgin forests and peat lands into plantations, part of an internationally backed strategy to reduce greenhouse gas emissions from deforestation.
Two leading senators on Wednesday introduced a sweeping energy and climate change bill intended to cut U.S. greenhouse gas emissions while reshaping the energy sector for the 21st century.
Ever since a devastating earthquake struck Haiti on January 12 followed by others in Chile, Baja California and Indonesia, many people have asked the question, "Are earthquakes getting worse?" The answer is a firm and unequivocal "No."
CNN's Phil Black reports on how recent scientific scandals are impacting the debate on climate change.
The UK scientist at the center of the "Climategate" controversy over leaked e-mails has been cleared of hiding or manipulating data by a parliamentary committee.
On Tuesday November 17, a substantial file including over 1,000 e-mails either sent from or sent to members of the Climatic Research Unit (CRU) at the University of East Anglia in eastern England were allegedly hacked and leaked onto the Internet.
CNN's John Roberts looks at the effect hacked e-mails may have on the U.N. Climate Conference.
A scientist in the United States has questioned the impact meat and diary production has on climate change, and accused the United Nations of exaggerating the link.
In the next couple of weeks, lawmakers are expected to unveil an unprecedented climate change proposal that may open up more areas for offshore drilling and cut emissions through a cap on greenhouse gases and a tax on gasoline.
The UK scientist at the center of a controversy surrounding e-mails leaked from a leading UK climate research unit has admitted the strain of the affair led him to consider suicide.
The Copenhagen climate talks went nowhere. The Senate's attempt to pass a global warming bill appears stuck. But that's doesn't mean greenhouse gas laws aren't coming.
Public concern about global warming and trust in climate leaders has dropped sharply in the U.S. according to a survey.
The U.N.'s leading panel on climate change has apologized for misleading data published in a 2007 report that warned Himalayan glaciers could melt by 2035.
CNN's Kristie Lu Stout looks back at the most important "green" developments of the decade.
What a difference a decade makes. Since the turn of the millennium environmental issues have come to the forefront with a marked shift toward all things green in politics, technology and perhaps most importantly, society.
A new proposal to curb global warming could jump start stalled Senate greenhouse gas discussions and put an average of $1,100 a year back into the pockets of American consumers.
Even if world leaders haven't finished the job with the global accord produced at the Copenhagen climate talks, the summit was not a total bust. That's because negotiators there outlined a landmark deal aimed at making money grow on trees.
CNN's Phil Black reports the deal made at the last day of the Copenhagen conference was not what many desired.
U.N. chief Ban Ki-moon said Saturday a "deal has been reached" that could be the framework for a binding global climate change treaty.
Polar bears have been featured in Coca-Cola's holiday advertising for nearly a century. Last month, Muhtar Kent, the company's CEO, traveled to the Arctic to see the furry creatures up close.
The World Health Organization (WHO) held a "side event" for public health officials in Copenhagen, Thursday, in an effort to put public health at the center of the climate-change debate.
With Copenhagen climate talks looking stalled and the Senate mired in complicated eco-wrangling, is there a simpler way to get the U.S. to reduce the carbon emissions that most scientists blame for global warming?
U.N. Secretary-General Ban Ki-moon on Tuesday urged both industrialized and developing countries to do more during this week's Copenhagen summit toward reaching an agreement on limiting carbon emissions.
Scientists say ice in the Andes Mountains is disappearing rapidly. CNN's Rafael Romo has the story.
Join the CNN/YouTube debate as world leaders attempt to thrash out a global treaty on climate change in Copenhagen in December.
Thousands of protesters took to the streets and hundreds were detained Saturday in Copenhagen as they demanded a climate-change agreement that would curb greenhouse gas emissions and aid developing countries harmed by pollution.
Thousands march in Copenhagen to demand leaders take action against climate change. CNN's Phil Black reports.
There's been a lot of gloom surrounding the climate talks in Copenhagen, Denmark, and let's face it, some of it is well-founded. Trying to get 192 countries to agree on a new treaty would be tough even in the best of economic times, and these aren't the best of economic times.
Investor George Soros tells CNN about a plan he says could free funds to fight climate change in the developing world.
Hacked e-mails from top environmental researchers, which appear to question whether humans influence climate, have been misunderstood, former Vice President Al Gore said Wednesday.
Former Vice President Al Gore gives his take on leaked climate change e-mails.
Photographer James Balog shares image sequences from a network of time-lapse cameras recording glacial recession.
In graduate school and as a mountaineer and nature photographer, I've visited many of the world's great mountain ranges and seen hundreds of glaciers.
Copenhagen, Denmark, is 5,000 miles away from New Orleans, Louisiana. But representatives of the 192 nations gathering this week at the climate change conference need to keep the memory of a flooded New Orleans in mind.
Danish Prime Minister Lars Lokke Rasmussen starts the UN Conference on Climate Change.
The United States and China have not offered to go far enough to combat climate change, a top European Union official said as a major international summit on the subject opened Monday.
On the opening day of the global climate summit in Denmark, a key U.N. official said she is optimistic that there will be a binding international treaty next year to cut greenhouse gas emissions.
Stolen e-mails and documents fuel the debate over climate change and could overshadow the climate conference in December.
CNN's Phil Black highlights what scientists hope to gain at the Copenhagen Climate summit.
Greenhouse gas emissions pose a threat to public health and welfare, EPA Administrator Lisa Jackson said Monday.
I asked a knowledgeable environmentalist earlier this week: "How big a story is the CRU scandal in your community?"
It's a massive jamboree, with tempers on both sides of the issue running hot and no final deal in sight.
The drumbeat rousing world leaders to action on climate change is fading out as delegates get down to the business of negotiating a global deal at climate talks in Copenhagen.
U.K. national weather service will release data in response to leaked e-mails. ITN's Andy Davies reports.
The UK's weather service, the Met Office is to publish station temperature records that make up the global land surface temperature record.
Nepal's cabinet met at the base of Everest on Friday to highlight the impact of climate change on the Himalayas and adopted a 10-point Everest Declaration.
Nepal's Cabinet meets at Everest base camp to highlight the impact of climate change on the Himalayas.
When the arctic winds howl and angry waves pummel the shore of this Inupiat Eskimo village, Shelton and Clara Kokeok fear that their house, already at the edge of the Earth, finally may plunge into the gray sea below.
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