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 …
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
A dust storm swept across eastern Australia and blanketed Sydney on Wednesday, disrupting transport, placing health authorities on alert for widespread respiratory illness and stripping thousands of tonnes of topsoil off Australia's main farmlands. Following are answers to questions about the storm. WHAT CAUSED THE DUST STORM? During winter in …
South Korea plans this year to unveil targeted cuts in its greenhouse gas emissions by 2020, South Korean President Lee Myung-bak said on Wednesday. Speaking at the U.N. General Assembly, Lee also said his country intends to invest about two percent of its GDP in "green growth" during the next …
The world leaders who met at the United Nations to discuss climate change on Tuesday are faced with an intricate challenge: building momentum for an international climate treaty at a time when global temperatures have been relatively stable for a decade and may even drop in the next few years. …
