Urban areas are currently responsible for ~70% of the global energy-related carbon dioxide (CO2) emissions, and rapid ongoing global urbanization is increasing the number and size of cities. Thus, understanding city-scale CO2 emissions and how they vary between cities with different urban densities is a critical task. While the relationship …
A large section of the mighty West Antarctica ice sheet has begun falling apart and its continued melting now appears to be unstoppable, two groups of scientists reported on Monday. If the findings hold up, they suggest that the melting could destabilize neighboring parts of the ice sheet and a …
Washington: Astronauts will now turn into cosmic gardeners and grow lettuce in space as Nasa is all set to send the largest-ever plant growth chamber to the International Space Station (ISS). The US space agency will launch the Vegetable Production System (Veggie) aboard SpaceX’s Dragon capsule on Monday. “Veggie will …
The length of the melt season for Arctic sea ice is growing by several days each decade, and an earlier start to the melt season is allowing the Arctic Ocean to absorb enough additional solar radiation in some places to melt as much as four feet of the Arctic ice …
In a new mission, Nasa fixed a lumbering twin-engine plane with high-tech equipment to make regular snow surveys, starting last weekend in drought-stricken California before the weather front expected to bring snow to the Sierra this week. At an altitude of up to 20,000 feet, the so-called Airborne Snow Observatory …
A long-standing debate was resolved yesterday when a new Nasa-led study confirmed that natural forests in the Amazon remove more carbon dioxide from the atmosphere than they emit. This means that the 5.5 million square kilometer forest is a crucial factor in reducing global warming. Living trees take carbon dioxide …
Earth's climate would continue to warm during this century on track with previous estimates, despite the recent slowdown in the rate of global warming, a new Nasa study has warned. The research hinges on a new and more detailed calculation of the sensitivity of Earth's climate to the factors that …
US space agency NASA yesterday said it would launch a water-related satellite in collaboration with India’s ISRO. The NASA-Indian Space Research Organisation Synthetic Aperture Radar mission is a part of its plan to launch in the next seven years a series of satellite related to water and drought, the agency …
NASA scientists plan to use images shot from space and within the Earth's atmosphere to help California monitor one of the worst droughts in its recorded history, officials said on Tuesday. Scientists said they would deploy imaging tools to measure snowpack and groundwater levels and use a host of other …
The disastrous Seti flash flood that claimed 72 lives and left dozens homeless less than two years ago was the result of a rockslide in the Seti-River gorge which created an artificial reservoir, according to the latest field research by the US-based National Aeronautical System Administration (NASA). The deadly event …
Last year, 2013, was tied with 2003 as the fourth warmest year since records began in 1880, according to the US government's National Oceanic and Atmospheric Administration (NOAA). For the 37th consecutive year, global temperatures were higher than the 20 thcentury average. Using the same data but calculating slightly differently, …
The average temperature of Earth maintained its warming trend in 2013, despite seasonal and regional variations that included a shrinking ice cap in the Arctic and a massively growing one in the southern hemisphere, U.S. scientists said on Tuesday. NASA said the planet's average temperature in 2013 was 58.3 degrees …
Emissions of sulphur dioxide - atmospheric pollutant with health and climate impacts - from power plants in India increased by over 60 per cent between 2005 and 2012, new data analysed by a Nasa satellite found. In 2010, India surpassed the US as the world's second highest emitter of SO2 …
At a time when glaciers are melting at an alarming pace, an SOS buried in a bottle 54 years ago in the Canadian Arctic, and unearthed now, sent a distress signal about the world's rapidly disappearing glaciers. An American geologist Paul Walker, concerned about the melting of ice, buried a …
Cape Canaveral: Nasa hopes its newest Mars spacecraft lives up to its know-itall name. The robotic explorer called Maven is due to blast off on Monday on a 10-month journey to the red planet. There, it will orbit Mars and study the atmosphere to try to understand how the planet …
The 5,000 tonnes of garbage generated in the city per day has the potential to be converted to 12 crore litre of aviation fuel and 4.5 crore litre of diesel per year. An expert told Express that through plasma gasification and vitrification process, a technology developed by NASA, the garbage …
Remember the Ozone hole? Decades ago it was a big concern. It was getting bigger and bigger and our emissions of ozone-depleting substances was identified as the main reason. It continues to get smaller as anthropogenic emissions continue to be reduced. It was slightly smaller in 2013 than average in …
Our Sun is a carbon-poor star, and as result, our planet Earth is made up largely of silicates, not carbon. Stars with much more carbon than the Sun, on the other hand, are predicted to make planets chock full of carbon, and perhaps even layers of diamond. By modelling the …
Earth scientists studying air pollution have just released a map that shows air pollution deaths over time on a global scale. The stark map shown above was created at NASA Earth Observatory by data visualizer and designer Robert Simmon. This atmospheric computer model shows the average number of deaths per …
The finding is based on an analysis of spectral data of Compton-Belkovich Volcanic Complex region A research team from the Space Applications Centre (SAC) of the Indian Space Research Organisation (ISRO) in Ahmedabad, led by Satadru Bhattacharya, has found evidence of water of volcanic origin — water that has originated …
The World Bank said on Tuesday it was planning "aggressive action" to help developing nations cut emissions of soot and other air pollutants blamed for causing climate change, in a shift also meant to protect human health and aid crop growth. Of its funding to poor nations, almost 8 percent …
