Atmosphere

Greenhouse Gas bulletin: the state of greenhouse gases in the atmosphere based on global observations through 2022

Greenhouse gas concentrations in the atmosphere hit new record highs in 2022, with no end in sight to the rising trend, according to this new report by the World Meteorological Organisation (WMO). This Bulletin represents the latest analysis of observations from the WMO GAW Programme. It shows globally averaged surface …

November was record warm for Earth as heat parade continues

Last month marked the warmest November on record worldwide at 1.75 degrees above average, a huge number in climate science, federal scientists announced Thursday. It was also the seventh consecutive month that's been record warm, the National Oceanic and Atmospheric Administration (NOAA) said. The parade of record heat also included …

Latin America and Caribbean severely affected by El Nino, says IICA

A new study by experts of the Inter-American Institute for Cooperation on Agriculture (IICA) has found that Latin America and Caribbean countries (LAC) will continue to be severely affected by the El Niño phenomenon that has been affecting the region since 2014. The IICA said that El Niño has impacted …

Global temperatures poised for record in 2016: Britain's Met Office

Global temperatures in 2016 are likely to be as warm or even warmer than in 2015, which will be the warmest on record, Britain’s Met Office said on Thursday. The weather forecasters said global mean temperatures in 2016 are expected between 0.72 and 0.96 degrees Celsius above the long term …

The heat is on – how to survive a long, hot El Nino summer

Keep an eye on children's water intake, carry a water bottle wherever you go and avoid travel in the hottest part of the day – that's the advice of QUT health statistician Associate Professor Adrian Barnett as we move into an El Niño weather pattern predicted to be the strongest …

El Niño to bring a warmer summer in Lima

At mid-December, skies in Lima continue to be draped with gloomy clouds and heavy humidity. When can locals expect a turn-around into summer? Summer officially begins on Dec. 21 and the National Meteorology and Hydrology Service of Peru (Senamhi) told El Comercio that they expect the cloudy skies and light …

U.S. government forecaster maintains outlook for strong El Niño this winter

A dock stands dry on drought-stricken Donner Lake near Truckee, California, December 4, 2015. An El Nino is forecasted for California, and regular precipitation has been welcomed after years of drought. Picture taken December 4. Photo: Max Whittaker A U.S. government weather forecaster on Thursday said the El Nino weather …

Japan weather forecaster says El Nino phenomenon is at its peak

Japan's weather bureau said on Thursday that the El Nino weather phenomenon is at its peak now and there is a strong possibility it would stretch into spring but weather would return to normal by summer. The El Nino, or a warming of sea-surface temperatures in the Pacific, typically leads …

Impact of different Asian source regions on the composition of the Asian monsoon anticyclone and of the extratropical lowermost stratosphere

The impact of different boundary layer source regions in Asia on the chemical composition of the Asian monsoon anticyclone, considering its intraseasonal variability in 2012, is analysed by simulations of the Chemical Lagrangian Model of the Stratosphere (CLaMS) using artificial emission tracers. The horizontal distribution of simulated CO, O3, and …

Monster' El Nino could usher in decade of more and stronger events

In Buffalo, it hasn't snowed yet this year. A Duluth, Minnesota, newspaper reported that the temperature was 40 degrees above zero, not below. And in Miami, beachgoers are staying indoors during what's already the third-wettest December in local history. What's going on with the weather? It's the phenomenon called El …

Zimbabwe: Series of High Temps Hits Zim - Met Dept

Another series of high temperatures has hit the country with low-lying areas expected to record extreme temperatures between 33 and 42 degrees celcius. In a statement last week, the Meteorological Services Department (MSD) said high temperatures were a cause for concern in the country. MSD said the extreme hot and …

Global Carbon Budget 2015

The 2015 Global Carbon Budget, released during the UN Climate Change negotiations, said that Carbon Dioxide (CO2) emissions from fossil fuels and industry increased by 0.6% in 2014, with a total of about 9.8 Gigatonnes of carbon (GtC (billion tonnes of carbon) emitted to the atmosphere. This is 60% above …

Mixing state and sources of submicron regional background aerosols in the northern Qinghai–Tibet Plateau and the influence of biomass burning

Transmission electron microscopy (TEM) was employed to obtain morphology, size, composition, and mixing state of background aerosols with diameter less than 1 µm in the northern Qinghai–Tibet Plateau (QTP) during 15 September to 15 October 2013. Individual aerosol particles mainly contained secondary inorganic aerosols (SIA – sulfate and nitrate) and …

AMAP Assessment 2015: black carbon and ozone as Arctic climate forcers

The Arctic Monitoring and Assessment Programme (AMAP), one of the six Working Groups of the Arctic Council, has released its assessment report on black carbon and ozone as Arctic climate forcers, which complements an earlier report on methane as Arctic climate forcer as part of AMAP's assessment on short-lived climate …

Australia says El Nino-reinforcing weather condition ends

A climate condition that has reinforced the impact of an El Nino weather event in recent months has broken down over the past fortnight, but a strong El Nino persists, Australia's weather bureau said on Tuesday. A positive Indian Ocean Dipole - a difference in sea surface temperatures between two …

2015 set to be hottest on record, 2016 even hotter due to El Niño: U.N.

The World Meteorological Organization (WMO) said global average surface temperatures in 2015 were likely to reach what it called the "symbolic and significant milestone" of 1° Celsius above the pre-industrial era. "This is due to a combination of a strong El Niño and human-induced global warming," the WMO said in …

El Niño strengthening, will be among biggest on record: WMO

The El Niño weather pattern, a phenomenon associated with extreme droughts, storms and floods, is expected to strengthen before the end of the year and become one of the strongest on record, the U.N. weather agency said on Monday. The World Meteorological Organization (WMO) said this El Niño was already …

Carbon dioxide levels hit record high: WMO

Carbon dioxide concentrations have reached a crucial level. The World Meteorological Organization (WMO), in an annual accounting of greenhouse gas concentrations in the atmosphere, reported that average levels of carbon dioxide exceeded 400 parts per million in the early months of 2015, a rise of 43 percent over pre-industrial levels. …

An increase in aerosol burden and radiative effects in a warmer world

Atmospheric aerosols are of significant environmental importance, due to their effects on air quality, as well as their ability to alter the planet’s radiative balance. Recent studies characterizing the effects of climate change on air quality and the broader distribution of aerosols in the atmosphere show significant, but inconsistent results, …

Greenhouse Gas Bulletin: the State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2014

The amount of greenhouse gases in the atmosphere reached yet another new record high in 2014, continuing a relentless rise which is fuelling climate change and will make the planet more dangerous and inhospitable for future generations. The World Meteorological Organization’s Greenhouse Gas Bulletin says that between 1990 and 2014 …

Landscapes of thermal inequity: disproportionate exposure to urban heat in the three largest US cities

Heat waves are the most significant cause of mortality in the US compared to other natural hazards. Prior studies have found increased heat exposure for individuals of lower socioeconomic status in several US cities, but few comparative analyses of the social distribution of urban heat have been conducted. To address …

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