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 …
US scientists have discovered fog moving across the south pole of Saturn's largest moon, Titan. Titan looks to be the only place in the solar system aside from Earth to have copious quantities of liquid (largely, liquid methane and ethane) on its surface. The new discovery suggests that Earth and …
This document by IMD, contains the highlights of temperatures during the year 2009. It presents the monthly temperature profile with spatial pattern over India. For full report: http://www.imd.gov.in/doc/warm2009.pdf
HARDEV SANOTRA The world's weatherman tells us that this year had been the fifth warmest since 1850 and the decade has been the hottest on record. The Geneva-based World Meteorological Organisation (WMO) released its annual data earlier at the UN climate conference which shows that the combined sea and land …
In negotiating the new climate change protocol in Copenhagen this month, we must not lose sight of our objective: to reduce the rate of annual global emissions so that we stay below the threshold of 450 parts per million for the concentration of greenhouse gases in the atmosphere. Even that …
How do climatologists know that increasing levels of carbon dioxide in the atmosphere will warm the earth? First, basic science tells them that CO2 molecules trap energy from the solar-heated earth and prevent its radiation back into space. And second, the history of climate over millions of years shows the …
Efforts to control climate change require the stabilization of atmospheric CO2 concentrations. This can only be achieved through a drastic reduction of global CO2 emissions. Yet fossil fuel emissions increased by 29% between 2000 and 2008, in conjunction with increased contributions from emerging economies, from the production and international trade …
Worried about driving blind on a foggy winter morning? Help will soon be an SMS away. The weatherman has decided to start a service providing point to point information about fog and visibility through cellphone messages. The project will begin in Delhi and then be replicated in other parts of …
Beijing: Chinese scientists artificially induced the second major snowstorm to wreak havoc in Beijing this season, state media said, reigniting debate over the practice of tinkering with Mother Nature. After the earliest snow to hit the capital in 22 years fell on November 1, the capital was again shrouded in …
Human activities have more than doubled the amount of nitrogen(N) circulating in the biosphere. One major pathway of thisanthropogenic N input into ecosystems has been increased regionaldeposition from the atmosphere. Here we show that atmosphericN deposition increased the stoichiometric ratio of N and phosphorus(P) in lakes in Norway, Sweden, and …
The carbon cycle is closely linked to the climate system and is influenced by the growing human population and associated demands for resources, especially for fossil-fuel energy and land. The rate of change in atmospheric CO2 reflects the balance between carbon emissions from human activities and the dynamics of a …
LEH: Anyone visiting Ladakh for the first time can be left gasping for breath due to low oxygen levels in the high altitude region. But a successful plantation drive has brought about environmental changes-driving up oxygen content by 50% and, most unusually, making it rain, say Indian scientists.
Subhash Chandra N S, Bangalore, Oct 12, DHNS: Things are hotting up in the City. Several parts of Bangalore are witnessing an increase in the land surface temperature (LST) by as much as two degrees Celcius over the past few years, a study by the Indian Institute of Science (IISc) …
Despite its long-recognized importance, nitrous oxide (N2O, also commonly referred to as laughing gas) sometimes seems like the forgotten atmospheric gas. Concerns about the stratospheric ozone layer have largely focused on reactions of ozone with chlorine and bromine atoms released from the atmospheric dissociation of chlorofluorocarbons and other anthropogenic halocarbons. …
Planned adaptation to climate change requires information about what is happening and why. While a long-term trend is for global warming, short-term periods of cooling can occur and have physical causes associated with natural variability. However, such natural variability means that energy is rearranged or changed within the climate system, …
Patterns of sea-surface warming and cooling in the tropical Pacific seem to be changing, as do the associated atmospheric effects. Increased global warming is implicated in these shifts in El Ni
