Increased warming from changing ocean currents has accelerated over the past century and could ultimately affect climate patterns over much of the world, according to oceanographers

Ice caps and glaciers outside the regions of Greenland and Antarctica are shedding roughly 150 billion tons of ice annually

A team of researchers has reported results from the broadest worldwide study of ocean acidification—or pH level—to date

Sales of forest land to corporations are dispossessing inhabitants and harming ecosystems

Marathon talks enabled Europe to break deadlock over global-warming deal with major greenhouse-gas emitters. Did it?

Nature looks at the hurdles faced by Alberta and other jurisdictions over their emissions trading schemes

While the event that began the carbon-discharge cycle 56 million years ago remains a mystery, the implications are clear, says Rice University professor Gerald Dickens

The Arctic covers around 5% of the planet's surface, but it is capturing a disproportionate amount of attention. With temperatures rising at twice the global rate, the region's summer sea ice is shrinking rapidly, making access easier than ever before. At the same time, countries are racing to claim parts of the Arctic's sea floor and the vast deposits of hydrocarbons that lie beneath it

The European Union remains well on track to achieve its Kyoto Protocol target for reducing greenhouse gas emissions despite a 2.4 % emissions increase in 2010, according to first estimates by the European Environment Agency (EEA). The 2010 increase follows a 7 % drop in 2009, largely due to the economic recession and growth of renewable energy generation

Gaze at the Blue Ridge Mountains of Virginia and you'll be looking into a hazy cloud hovering above the range's deciduous forests. But it's not all lovely: The cloud contains organic chemicals from trees, called isoprenes, that can be converted into ozone, a dangerous pollutant and greenhouse gas

Despite its distance from the region in question, in late August Reykjavik hosted the third workshop on the Third Pole Environment (TPE) — a region centred on the Tibetan Plateau and the Himalayas that boasts the largest store of ice outside the Arctic and Antarctic

A desert may need no defining, but desertification is not so easy to pin down. Although the loss of soil nutrients and moisture threatens roughly a third of the world's land area, imperilling farming and biodiversity, scientists lack a clear definition of it or agreed standards to measure its causes and progression

When the weather gets weird, as happens a lot these days, one question inevitably arises from reporters, politicians and the general public alike: is this global warming? 

The Obama Administration announced today that it will not lower air pollution limits this year for smog-causing ozone -- a move welcomed by industry but decried by public health advocates. The decision derails a proposed tightening by the Environmental Protection Agency (EPA) of a controversial standard developed in the final year of the Bush Administration

The paper, by US scientists Roy Spencer and William Braswell, claimed that computer models of climate inflated projections of temperature increase. It was seized on by "sceptic" bloggers, but attacked by mainstream scientists. Wolfgang Wagner, editor of Remote Sensing journal, says he agrees with their criticisms and is stepping down

A significant message from those who are still observing  games by adults.

A not-for-profit organization targeting market-driven solutions to climate change, announced today the launch of a series of online and live seminars for shipping industry participants on its Shippingefficiency.org online service - launched at the UN climate change talks in December.

The 2010 meteorological year, which ended on 30 November, was the warmest in NASA's 130-year record. The main driver for the increased warmth was the Arctic, where sea ice was absent during months when it should have normally covered the water. Water devoid of ice absorbs much more solar radiation.

Unusually warm ocean temperatures in the summer and fall of 2005 caused a mass die-off of Caribbean corals that is the worst ever recorded there, according to new research published yesterday in the online journal PLoS ONE. Such events are also likely to become more common as global warming continues, concludes a team of 65 authors in 22 countries.

Delegates to a United Nations meeting herelast week made scant headway on a global strategy for reiningin greenhouse gas emissions. But amid the pessimism and recriminations, one nation won praise from observers for its efforts to boost energy efficiency and invest in green technologies: the host, China.