NEWS

Analysis finds that more than half of black carbon never reaches the ocean bottom.[more]

Costs of carbon emissions are being underestimated, but current estimates are still valuable for setting mitigation policy, say researchers in Nature.[more]

Greenhouse gases released by thawing permafrost could accelerate global warming trends according to a new study of changes in peat chemistry as it thaws.[more]

Climate researcher Michael Mann says that the Atlantic Multidecadal Oscillation (AMO) is in a cooling phase and has acted to help slow global warming.[more]

Climate feedbacks from decomposition by soil microbes are one of the biggest uncertainties facing climate modelers. A new study shows that these feedbacks may be less dire than previously thought.[more]

Increased amounts of ecosystem carbon have been recorded in the Mojave Desert after ten years exposure to elevated CO2 levels, according to a new paper.[more]

Two new papers highlight the issue of mathematical uncertainty in the climate system and the fact that greater uncertainty can increase risks and necessitate greater mitigation measures.[more]

The University of Alabama in Huntsville’s Version 5.6 global satellite-measured average lower tropospheric temperature (LT) anomaly for March, 2014 is +0.17 deg. C, unchanged from February.[more]

Remote Sensing Systems, the US data services company that provides a global temperature data set for the lower troposphere constructed from satellite instrument measurements, has released data for March 2014.[more]

Recent research results show that an atmospheric hole over the tropical West Pacific is reinforcing ozone depletion in the polar regions and could have a significant influence on the climate of the Earth.[more]

Data from the US National Snow and Ice Data Center shows that Arctic sea ice reached its maximum extent on 21 March, that multiyear Arctic sea ice is thickening, and that the winter 2013/2014 period saw the fifth smallest sea ice…[more]

Britain’s Meteorological Office has announced a major advance in improving the skillfulness of long range weather forecasts. Details are revealed in a paper just published in Geophysical Research Letters.[more]

Warm North Atlantic Ocean waters promote extreme winters in the US and Europe, according to new research which links long term natural variations in the Atlantic Ocean, known as the Atlantic Multidecadal Oscillation, with an…[more]

Corals reefs off the Australian coast reveal centuries of rising sea levels and temperatures, according to a new paper.[more]

Autumn is ending later and Spring is starting earlier in the northern hemisphere, according to new research.[more]

Northern and Southern Hemisphere climates follow the beat of different drummers, according to new research.[more]

The effect of important air pollutants may be absent from key precipitation observations, according to new research.[more]

The Atlantic Ocean dances with the Sun and volcanoes. Natural fluctuations in the ocean temperature in the North Atlantic have a significant impact on the climate in the northern hemisphere. These fluctuations are the result of a…[more]

Climate change driven global warming may spread drying to a third of Earth, says a new study, and it is heat, not just rainfall, that plays into the new projections.[more]

Methane-producing microbes may be responsible for the largest mass extinction in Earth’s history, according to a new paper in PNAS.[more]

Oxygen depletion in the Baltic Sea is ten times worse than a century ago, say researchers in a new PNAS paper.[more]

A longer melt season for Arctic sea ice is allowing the Arctic Ocean to absorb more sunlight and warm, according to researchers from US agencies NSIDC and NASA.[more]

Climate change is already having an impact and worse is to come, according to a new report from the Intergovernmental Panel on Climate Change (IPCC) which was published on 31 March 2014.[more]

Today (March 31 2014) in Yokohama, Japan, the United Nations Intergovernmental Panel on Climate Change (IPCC) released the second installment of its AR5 report into climate change which looks at the impact of climate change….[more]

A list of extreme weather events observed around the world during the period December 2013 to end February 2014 has been put together by the World Meteorological Organization.[more]

Computer models forecast an El Nino Pacific Ocean warming event in 2014, according to the latest update issued by Australia’s Bureau of Meteorology.[more]

The recent slow down in the rise of global mean sea level which appears to have co-incided with the so called pause in global warming disappears once natural short-term variability – such as the affects of the El Nino-Southern…[more]

There is a statistical link between Arctic sea ice concentration in September and the weather that Europe experiences through the following winter, new research has found, indicating that it is important to incorporate Arctic…[more]

New research says that future heat waves will significantly reduce crop yields and threaten global food supply.[more]

A 40 per cent cut in CO2 emissions across the EU can be achieved at a cost of less than 0.7 per cent of economic activity, say experts.[more]

Leading atmospheric science researchers have pointed out in a new paper that extreme weather events will continue irrespective of climate change and that trying to link such events to global warming distracts attention from…[more]

Here is the text of the February global climate report from the US National Oceanic and Atmospheric Administrations (NOAA). Global mean surface temperatures in February 2014 were the 21st warmest in the dataset which goes back to…[more]

Greenland’s contribution to sea-level rise was previously underestimated and needs to be accounted for in future projections, according to new research. A previously stable region of the Greenland ice sheet is undergoing dynamic…[more]

Research suggests ocean mixing plays an important role in bringing iron and other nutrients to the surface to stimulate phytoplankton growth which helps support the ocean carbon cycle.[more]

Scientists explain in a new Nature paper that geological processes are responsible for ensuring that the Earth remains capable of supporting life and does not turn into a hot Venus or cold Mars.[more]

Two new papers show how analysing years of data Tibet and Himalayas can help better predict glacial response to global climate change.[more]

Research points to the Pacific Decadal Oscillation and anthropogenic pollutants as factors in widening the tropical belt.[more]

A statistical “Bayesian hierarchical model” allows scientists to combine various sources of information as well as previous scientific knowledge to improve forecasts of changes in the oceans such as El Nino Pacific Ocean warming…[more]

NASA’s Operation IceBridge has started a new mission flying aircraft instruments over the Greenland ice sheet and polar sea ice with one aim being to help calibrate satellite measurements.[more]

Space observations have been used to help calculate how ocean life captures carbon dioxide and locks it away in biological materials.[more]

More accurate measurements of ice sheet discharge rates have been made possible by a NASA radar study of the Greenland ice sheet.[more]

The chances of an El Nino Pacific Ocean warming event later this year have increased, according to the latest report from the Australian Bureau of Meteorology. Computer forecasts agree that the Pacific sea surface will warm and…[more]

Cooling from atmospheric particles and from ozone may mean that IPCC low-end estimates of climate sensitivity are wrong and need to be increased by 30 per cent, according to new research. NASA says this means long term global…[more]

Aerosols from human pollution tend to weaken tropical cyclones according to a new paper in Nature Climate Change.[more]

New research puts the sun in the frame for causing the Little Ice Age by triggering persistent blocking patterns in the atmosphere over the North Atlantic.[more]

Four newly detected ozone-depleting substances started to emerge in the atmosphere in the 1960s, reports a study published online in Nature Geoscience. Although emissions of these compounds have been small, they are contrary to…[more]

Europe will experience greater warming than the global average increase in surface temperatures, according to new research.[more]

Arctic sea ice extent in February 2014 was the fourth lowest on record for the month and almost exactly in line with the long term trend decline while sea ice extent in the Antarctic remains significantly above average,…[more]

Satellite data from the University of Alabama in Huntsville (UAH) shows the February global temperature anomaly for the lower troposphere as measured by satellite was 0.172C compared with 0.203C in February 2013[more]

Global temperatures will eventually rise by around 2C in response to a sustained doubling of atmospheric carbon dioxide, according to new research. This is consistent with the lower end of the range set out last year by the…[more]

New research projects a massive increase in financial losses due to floods in Europe over coming decades as the risk of flooding doubles, concludes a paper published online this week in Nature Climate Change.[more]

Changes in the salinity of ocean surface waters due to climate change are inhibiting deep ocean mixing, encouraging ocean heat storage and contributing to the so called pause in global warming, according to new research.[more]

Britain’s Royal Society and the US National Science Academy have issued a new report describing the facts of climate change in simple terms.[more]

Climate models do not overestimate warming and the so called pause is due to a coincidence of a number of factors, according to new research.[more]

The current mysterious growth in Antarctic sea ice to record levels will reverse, according to a new study based on computer models.[more]

A new satellite to measure global rainfall and snow has been launched. Measuring precipitation globally is key for the study of the impacts of climate change.[more]

The effectiveness of computer climate models is in dispute as a scientific argument over the ability of climate models to successfully simulate the so called global warming pause breaks out in the pages of Nature Climate Change.[more]

Judging the effects of climate change on extinction may be easier than previously thought, according to a paper entitled, “Life history and spatial traits predict extinction risk due to climate change,” published today (26…[more]

Here is NOAA’s report on the global climate in January 2014.[more]

New research suggests that climate models may have overestimated global warming because they do not include the impact of aerosols from volcanic eruptions. The implication is that this may be a partial explanation of the so…[more]

A new study will help predict sea level changes related to El Nino.[more]

An increase in Arctic cyclones is linked to climate change, according to a study based on historical climate model simulations.[more]

Researchers have warned in a new paper that attempts to mitigate the impact of global warming by injecting reflective particles into the upper atmosphere would create a severe threat unless the activity were maintained.[more]

Parts of the world have witnessed a series of extreme weather conditions in the first six weeks of 2014, continuing a pattern that was set in December 2013, according to the World Meteorological Organisation (WMO).[more]

New research published this week suggests a three-in-four chance of an El Nino Pacific Ocean warming event beginning in late 2014. Meanwhile the Australian Bureau of Meteorology says the current status of the so called El Nino…[more]

MIT researchers find that the end-Permian extinction happened in just 60,000 years — much faster than earlier estimates – and appears to have been linked to an increase in carbon dioxide in the atmosphere, possibly due to…[more]

An article published online in Nature Climate Change today investigates how strengthened Pacific trade winds can account for 0.1C–0.2C of cooling through increased subsurface ocean heat uptake— this is enough to account for much…[more]

A joint report issued by the UK Meteorological Office and the UK Centre of Ecology and Hydrology states that the recent stormy weather that has afflicted the British Isles is “consistent” with global warming although the two…[more]

Satellite and local readings show that the rapid rise in sea-surface temperatures seen in the last quarter of the 20th century has significantly slowed in the past 15 years. The European Space Agency’s Climate Change Initiative…[more]

January data for the global lower tropospheric temperature anomaly has been released by Remote Sensing Systems showing an anomaly of +0.262C above the long term average[more]

Arctic lakes have been freezing up later in the year and thawing earlier, creating a winter ice season about 24 days shorter than it was in 1950, a University of Waterloo study has found.[more]

Satellite data shows that Arctic sea ice is getting thicker as Antarctic sea ice extent continues to expand to near record levels, according to a report issued by the US National Snow and Ice Data Center, in Boulder Colorado,…[more]

Satellite data from the University of Alabama in Huntsville (UAH) shows the January global temperature anomaly for the lower troposphere was +0.291C compared with +0.497C for January 2013. [more]

The WMO warns today in a press statement that global warming continues even though the rate of warming is uneven due to natural variations in the climate system.[more]

Global average storm surge damages could increase to $100,000 billion per year by the end of century, if no adaptation action is taken, according to estimates in new research.[more]

Global average storm surge damages could increase to $100,000 billion per year by the end of century, if no adaptation action is taken, according to estimates in new research.[more]

As climate change warms the Earth’s surface the distribution of plant species could be affected, warns a new study. This report courtesy of the University of Arkansas.[more]

Disappearing snow increases the risk of collapsing ice shelves in Antarctica that will release ice into the sea and so help increase sea levels, according to new research.[more]

Computer models used by the Australian Bureau of Meteorology (BoM) suggest that an El Nino Pacific Ocean warming event may be triggered later this year, according to the latest update on the El Nino Southern Oscillation (ENSO)…[more]

Asian ozone pollution in Hawaii is tied to climate variability, according to new research published in Nature Geoscience. This report from Princeton University.[more]

A reconstruction of the Met Office temperature record suggests that 2013 was, in fact, warmer than the El Nino year of 1998, that temperatures have been rising since 1998, that global warming continues and that the so called…[more]

A new paper in Science highlights the uncertain role that aerosols play in climate change.[more]

The sensitivity of the carbon cycle to tropical temperature variations has doubled, research shows.[more]

The UK Meteorological Office has updated its HadCRUT4 annual temperature database to include figures for 2013. The data shows that 2013 tied with 2002 and 2009 as the sixth warmest year on record. This means that the so called…[more]

The journal Science publishes results from a Polarstern expedition in the mostly unexplored South Pacific which discovered that dust blown out to land and falling onto the ocean affected the climate in the past[more]

A recent paper suggests that the recent expansion of Antarctic ice is at odds with what computer models predict should happen as a result of the depletion of stratospheric ozone and the Antarctic ozone hole even though the…[more]

New research suggests that forests played a key role in controlling atmospheric carbon dioxide levels in the past.[more]

Assumptions about the absorption of carbon by the land in polar regions may be overestimated unless they take into account the emission of carbon by inland waters, according to new research.[more]

A new paper claims to explain the paradox of why sea ice is growing in the Antarctic despite global warming. A combination of observational data and modelling reveals the potential significance of the north and tropical Atlantic…[more]

Changing landscapes are to blame for increased flood risk and not global warming says new research. Here is the news release describing the findings of the research which has just been published in the Hydrological Sciences…[more]

Researchers have found that air pollution over Asia – much of it coming from China – is impacting global air circulations.[more]

The so called pause in global warming that has been apparent since the late 1990s may be due to air pollution and to a greater frequency of La Nina Pacific Ocean cooling events as well as to other factors such as volcanic…[more]

The globally averaged temperature for 2013 tied with 2003 as the fourth warmest year since record keeping began in 1880, according to NOAA scientists. Here is the text of the NOAA press release and of the summary of the NOAA…[more]

NASA scientists say 2013 tied with 2009 and 2006 for the seventh warmest year since 1880. While this appears to confirm that the so called pause in global warming that began around 1998 appears to have continued in 2013, NASA…[more]

Extreme weather events fuelled by unusually strong El Ninos, such as the 1983 heatwave that led to the Ash Wednesday bushfires in Australia, are likely to double in number as our planet warms, according to researchers from the…[more]

New research shows that historic changes in the water cycle were the main drivers of widespread environmental change in western Europe. This has implications for the impact of the water cycle on climate change today.[more]

NASA searches for climate change clues in the gateway to the stratosphere using a Global Hawk research aircraft. This is the Airborne Tropical Tropopause Experiment (ATTREX).[more]

Analysis by the Stanford Energy Modeling Forum suggests that the European Union could achieve a significant reduction in greenhouse gas emissions to help offset climate change at relatively moderate cost. This news report…[more]

The United States, China, Russia, Brazil, India, Germany and the United Kingdom are named as the seven countries accounting for most of the temperature increase believed to be due to climate change, according to a new study. This…[more]

A study published today highlights growing threat of intense tropical cyclones hitting East Asia. The intensity of such storms has increased over the last 30 years. This is consistent with what many climate scientists would…[more]