Climatology

Protesters hold placards as they attend a no carbon tax rally in Sydney
Australia has introduced a controversial carbon tax in a bid to tackle climate change
Global sea levels could rise two to three times higher over the next century than previously estimated
All 1,800 firms listed on the London Stock Exchange's Main Market will be required to list greenhouse-gas emissions
Around 50,000 activists, business executives and policymakers are attending the 10-day forum
Around 50,000 activists, business executives and policymakers are attending the 10-day forum
Activists unveil a banner to ask leaders to end fossil fuel subsidies and to "reinvest that money cleanly and greenly"
Activist from NRDC, 350.org and Avaaz.org organizations unveil a banner to ask leaders to end fossil fuel subsidies
A UN climate science task force urges accurate snapshot of carbon emissions ahead of Rio+20
US Transportation Secretary Ray LaHood
Some sections of the reef have been bleached due to elevated sea temperatures and acidity, the results of global warming
Christiana Figueres, Executive Secretary of the UN Framework Convention on Climate Change
Every major economy in the world has now made a commitment to reducing greenhouse gas emissions
A general view shows the cityscape of the Qatari capital Doha
French climate ambassador Serge Lepeltier
The UN's target is a 2 C limit on warming from pre-industrial levels for manageable climate change
Some thousands protesters holding placards and banners take part in march in Durban
Hundreds of people protest in the halls of the venue of UN Climate Talks in 2011
Some thousands protesters holding placards and banners take part in march in Durban
Hundreds of people protest in the halls of the venue of UN Climate Talks in 2011

Ancient megavolcanoes killed half the world's species

New rock dating techniques have helped narrow the timeframe of a chain of massive volcanic eruptions that wiped out half the world's species 200 million years ago, a study said Thursday.
 

EU puts airline carbon tax on hold for a year

The EU will put its controversial carbon tax on intercontinental airline flights on hold for a year to give time for international talks to reach a compromise on the issue, a European source said Thursday.
 

Greener cars could slash US pollution by 2050: study

Greener cars that use alternative fuels could help the United States slash its greenhouse gas emissions from everyday driving a full 80 percent by 2050, according to a scientific study out Monday.
 

Obama renews call for investment in efficient energy

US President Barack Obama on Saturday renewed his call for developing new technologies that would reduce dependence on fossil fuels and shift American cars and trucks off petroleum gas.
 

Developing world's rise heralds global shift, UN says

The developing world's rapid growth has sharply cut extreme poverty, created a new middle class and put the economies of Brazil, China and India on a path to overtake the globe's wealthiest nations, the UN says.
 

Lack of climate action risks developing world gains: UN

The rise of developing nations has cut poverty while the combined economies of Brazil, China and India are on a path to overtake wealthy nations, but failure to act on climate change could reverse those gains, a UN report said Thursday.
 

Kerry to make first Asia trip in mid-April

US Secretary of State John Kerry will make his first trip to Asia as America's top diplomat in mid-April, an official announced Thursday, with North Korea expected to top the agenda.
 

After 2012 drought, US farmers adapt for climate change

Emerging from the worst drought in 50 years, US farmers are bracing for long-term challenges from climate change including blasting heat and more capricious rainfall.
 

El Nino, La Nina unlikely to show up in first half of 2013: WMO

The El Nino and La Nina climate patterns are unlikely to make an appearance during the first half of this year, the UN's weather agency said Monday.
 

Canada's glaciers could shrink by a fifth by 2100

A fifth of Canada's glaciers could be gone by the end of the century, a casualty of global warming that would drive a 1.4-inch (3.5-centimeter) rise in sea levels, a study found Thursday.
 

Earth on track to be hottest in 11.3 millennia: study

The Earth is on track to becoming the hottest it has been at any time in the past 11.3 millennia, a period spanning the history of human civilization, a study published Thursday has found.
 

EU court rejects Polish challenge to CO2 emissions system

A top EU court rejected Thursday a challenge by Poland, heavily dependent on coal, to the bloc's controversial greenhouse gas trading system.
 

International ban on polar bear trade rejected

A major meeting of governments on threats to endangered species on Thursday rejected a ban on international trade in polar bears amid fears it would distract from the bigger threat of global warming.
 

International ban on polar-bear trade rejected

A major wildlife meeting of world governments shunned calls to ban international trade in polar bears, despite growing fears for the world's largest carnivorous land animal.
 

New SimCity game addresses climate change

A 10-year wait ends Tuesday with the arrival of "SimCity", a computer game that challenges players to build thriving cities in the face of conditions such as limited funds and climate change.
 

SimCity rebuilt for modern life

A 10-year wait ends Tuesday with the arrival of "SimCity", a computer game that challenges players to build thriving cities in the face of conditions such as limited funds and climate change.
 

Obama names energy, environment and budget officials

US President Barack Obama on Monday added three new names to his second term cabinet, deciding on a budget chief, energy secretary and head of the Environmental Protection Agency.
 

UK must prepare for extreme weather, warns agency

Britain needs to be more prepared for extreme weather, the head of the Environment Agency warned Monday, after the country was hit by floods on one of five days last year and droughts on one in four.
 

Australian climate on 'steroids' after hottest summer

Australia's weather went "on steroids" over a summer that saw an unprecedented heatwave, bushfires and floods, the climate chief said Monday, warning that global warming would only make things worse.
 

Australian climate on 'steroids' after hottest summer

Australia's weather went "on steroids" over a summer that saw an unprecedented heatwave, bushfires and floods, the climate chief said Monday, warning that global warming would only make things worse.