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 …
The anthropogenic input of fossil fuel carbon into the atmosphere results in increased carbon dioxide (CO2) into the oceans, a process that lowers seawater pH, decreases alkalinity and can inhibit the production of shell material. Corrosive water has recently been documented in the northeast Pacific, along with a rapid decline …
The Cantonment Board, Shillong has undertaken a project on its own with confiscated plastic recovered from various shops to construct a molten plastic liquid tar road in a stretch of four km. The move came close on the heels of John F Kharshiing, co-chairman of the Meghalaya State Planning Board …
Precipitation has dropped owing to human-influenced aerosols: study Human activity that spews out fine particles into the atmosphere could be taking a toll on the Indian monsoon, leading to a decline in recent decades, say researchers in a paper being published online by the journal Science . With the rising …
Summer monsoons that provide up to 80 percent of the water South Asia needs have gotten drier in the past half century, possibly due to aerosol particles spewed by burning fossil fuels, climate scientists said on Thursday. Monsoon rains are driven by looping air circulation patterns over India, and the …
Sending satellites to monitor the atmosphere is fundamental to weather and climate research. So why is the United States making such a meal of it? (Editorial)
The global uptake of carbon by land plants may be greater than previously thought, according to observations based on the enigmatic Keeling curve of rising atmospheric carbon dioxide.
he stable isotope ratios of atmospheric CO2 (18O/16O and 13C/12C) have been monitored since 1977 to improve our understanding of the global carbon cycle, because biosphere–atmosphere exchange fluxes affect the different atomic masses in a measurable way. Interpreting the 18O/16O variability has proved difficult, however, because oxygen isotopes in CO2 …
Rains in India will start subsiding in the next two days, the weather department said Thursday, calming concerns of crop damage due to the monsoon lasting longer than usual. The monsoon usually starts subsiding in the first week of September, but the season has been prolonged by about two weeks …
According to scientists, evaporated water helps in cooling earth as a whole, not just the local area of evaporation, a study said. A new study by scientists at the Indian Institute of Science, the Carnegie Institution for Science at Stanford University and Lawrence Berkeley National Laboratory have demonstrated that evaporation …
Clouds only amplify climate change, says a Texas A&M; University professor in a study that rebuts recent claims that clouds are actually the root cause of climate change. Andrew Dessler, a Texas A&M; atmospheric sciences professor considered one of the nation's experts on climate variations, says decades of data support …
In the context of climate change and its impact on sectors like agriculture and health, it is important to examine the changes in the characteristics of temperature extremes of different intensities and duration. In this study, an India Meteorological Department gridded temperature dataset is used to examine the changes in …
Dust has the potential to modify global climate by influencing the radiative balance of the atmosphere and by supplying iron and other essential limiting micronutrients to the ocean. Indeed, dust supply to the Southern Ocean increases during ice ages, and ‘iron fertilization’ of the subantarctic zone may have contributed up …
The previously increasing atmospheric methane concentration has inexplicably stalled over the past three decades. This may be due to a fall in fossil-fuel emissions or to farming practices that are curtailing microbial sources.
Atmospheric methane (CH4) increased through much of the twentieth century, but this trend gradually weakened until a stable state was temporarily reached around the turn of the millennium, after which levels increased once more. The reasons for the slowdown are incompletely understood, with past work identifying changes in fossil fuel, …
Impact of global warming on the Indian monsoon climate is examined using Hadley Centre’s high resolution regional climate model, PRECIS (Providing REgional Climates for Impact Studies). Three simulations from a 17-member Perturbed Physics Ensemble generated using Hadley Center Coupled Model (HadCM3) for the Quantifying Uncertainty in Model Predictions (QUMP) project, …
The Kerala State Biodiversity Board (KSBB) has raised an alarm over the advancing dry climate in the Cardamom Hill Reserves (CHR) in the high ranges of eastern Kerala, otherwise known as original cardamom country. A special KSBB report attributed this to the loss of forest cover in the hills bordering …
Indian Space Research Organisation (ISRO) with the joint effort of Forest Department has installed a carbon measurement centre at Sukwan beat of Tawadi forest division in Betul district. Testing of various sensors has also been started from the tower of this centre. Forest department sources informed that this is the …
The India Meteorological Department (IMD) has forecast ‘below normal' rainfall for the country during the second half (August-September) of the current south-west monsoon season. This comes even as the first half (June-July) has turned out to be not so bad, with the monsoon showers being reasonably well spread, both in …
MONITORING air pollution just got simpler. A handy and low-cost instrument has been developed for researchers to measure and analyse soot level in the air. Soot, or black carbon, is the second biggest contributor to global warming after carbon dioxide. It is released in the air by incomplete combustion of …
There have been many studies on the effects of enriched levels of atmospheric carbon dioxide on soils. A meta-analysis shows that emissions of other greenhouse gases increase under high-CO2 conditions. http://www.nature.com/nature/journal/v475/n7355/full/475177a.html
