Subscribe to Gizmag's RSS feed
Follow Gizmag on Twitter
Climate Change
Are EVs risking or saving the planet?
By Jeff Salton
19:05 November 12, 2009 PST
“Electric cars should be rewarded for their energy efficiency, not for moving emissions from exhaust pipes to powerstation chimneys” says the UK's Environmental Transport Association (ETA). In a report titled "How to avoid an electric shock - Electric cars: from hype to reality", the ETA has taken a close look at electric-powered vehicles (EVs) and their associated technologies. In what could be a shock to some commuters – and governments - the report states that EVs could potentially speed climate change, rather than reduce it, and might not be as good for the planet as some of the spin suggests. Simply put, it’s not necessarily the cars themselves that will cause the damage, but the way the electricity is generated to power them and how often we drive them. For instance, EVs powered by “green energy” - wind or solar - are obviously superior, but if the electricity comes from coal, hybrids perform better. Read More
Long awaited satellite to monitor water cycle reaches orbit
By Darren Quick
22:43 November 5, 2009 PST
The 658kg (1,450 lb) Soil Moisture and Ocean Salinity (SMOS) satellite launched by the European Space Agency (ESA) this week is the first ever satellite designed both to map sea surface salinity and to monitor soil moisture on a global scale. The unique radiometer it carries will enable passive surveying of the water cycle between oceans, the atmosphere and land thereby playing a key role in the monitoring of global climate change. Read More
Research says 'enact policies now' to limit risk of climate catastrophe
By Jeff Salton
21:03 October 6, 2009 PDT
Researchers at MIT have continued a study of climate risk and released a new report to show that even moderate carbon-reduction policies can substantially lower the risk of future climate change. It also shows that action is needed quickly if global emissions reductions are to provide a good chance of avoiding a temperature increase of more than 2°C above the pre-industrial level — a widely discussed target. But the researchers determined that failing to take prompt action could result in extreme changes that could become much more difficult, if not impossible, to control. Read More
'Green roofs' prove even more effective in fighting global warming than first thought
By Jeff Salton
01:30 September 24, 2009 PDT
‘Green roofs’- urban rooftops covered with plants - are gaining in popularity to help buildings reduce their reliance on air conditioning, and now scientists in Michigan are reporting they could also help fight global warming by eliminating carbon dioxide in cities, more effectively than was first thought. Read More
Arctic warming overtakes 2,000 years of natural cooling
By Gizmag Team
20:55 September 6, 2009 PDT
Arctic temperatures in the 1990s reached their warmest level of any decade in at least 2,000 years, new research indicates. The study, which incorporates geologic records and computer simulations, provides new evidence that the Arctic would be cooling if not for greenhouse gas emissions that are overpowering natural climate patterns. The international study, led by Northern Arizona University and the National Center for Atmospheric Research (NCAR), will be published in the September 4 edition of Science. Read More
Using mobile phone towers to help predict the next big flood
17:06 July 8, 2009 PDT
Atmospheric humidity can strongly influence radio signals by scattering them in all directions, weakening and making it much harder to detect on the receiving end. A team of researchers from the University of Tel Aviv has now found a new, promising way of exploiting this phenomenon to accurately predict the intensity of imminent floods and other natural catastrophes. Read More
Invasive Alien Species threatening global biodiversity
By Mike Hanlon
15:34 May 24, 2009 PDT
While the implications of climate change for biodiversity have been widely recognised, the insidious effect of invasive alien species (IAS) on global biodiversity stays under the radar. Last Friday was the United Nations’ International Day for Biological Diversity (IDB) and the International Convention on Biological Diversity sees IAS as “one of the greatest threats to biodiversity, and to the ecological and economic well-being of society and the planet”. “Increasing globalisation has led to greater movement of new species around the world, and native species killed or stressed by global change will all too often be replaced by these weeds and feral animals,” says CSIRO Biodiversity Research Director, Dr Mark Lonsdale. CSIRO Podcast Read More
Playing roulette with the climate – everybody loses
By Darren Quick
07:55 May 22, 2009 PDT
Research carried out by the MIT's Center for Global Change Science has predicted that global warming will be roughly double previous estimates – and could be even worse than that. While a major 2003 study indicated a median projected increase in earth surface warming of 2.4 degrees Celsius, the new study, which takes into account possible changes in human activities, points to a median probability of surface warming of 5.2 degrees Celsius by 2100 unless drastic action is taken. Read More
Biofuel versus bioelectricity, and the winner is…
By Darren Quick
06:35 May 20, 2009 PDT
Running vehicles on biofuels such as ethanol reduces CO2 emissions and offers a way to lessen the world's reliance on oil. While this sounds great from an environmental perspective, the energy required to produce the biofuel and the land clearing for crops that can result means biofuels aren’t necessarily the environmentally friendly solution they initially appear to be. Recognizing this, researchers have analyzed the best way to maximize the “miles per acre” from biomass and discovered that the far more efficient option is to convert the biomass to electricity, rather than ethanol. Another tick for the electric car. Read More
The Bushbunker: last resort wildfire protection
By Karen Sprey
06:43 May 19, 2009 PDT
Australia’s ‘Black Saturday’ in February claimed 173 lives and countless homes and livelihoods. The country’s worst wildfire tragedy, this horrific disaster was an extreme example of an annual threat faced not only in Australia but also North America and South Africa where similar dry conditions are experienced. As the survivors struggle to come to terms with their losses and begin to rebuild their lives, questions are being asked about what could have been done, and what must be done now to better protect populations. Tougher building standards for homes in fire-prone areas will be introduced, but another option under scrutiny is fire resistant shelters - are they safe, should governments play a role in their development and how should they be designed and built? Entering this debate is the Bushbunker, a dedicated fire shelter design which aims to maximize the likelihood of survival regardless of the intensity or type of fire. Read More
Ground-breaking research finds way to convert CO2 into clean-burning biofuel
22:23 April 19, 2009 PDT
Scientists at the Singapore-based Institute of Bioengineering and Nanotechnology (IBN) have made an unprecedented breakthrough in transforming carbon dioxide, a common greenhouse gas, into methanol, a widely used form of industrial feedstock and clean-burning biofuel. Using "organocatalysts", researchers activated carbon dioxide in a mild and non-toxic process to produce the more useful chemical compound. Read More
New climate model predicts almost ice-free Arctic Ocean in just 30 years
02:15 April 8, 2009 PDT
According to new research the Arctic Ocean may be ice free in the summer months much faster than previously estimated. Research based on earlier climatic models suggested that this would not occur until the end of the century, but new models suggest that the Arctic might lose most of its ice cover in as little as 30 years - three times more rapid than previous studies have indicated. If this was to occur, the amount of the arctic covered by ice at the end of the summer could be down to around 1 million square kilometers (390 000 square miles) compared with the currently coverage of 4.6 million square kilometers (1.8 million square miles). Read More
Fish oils fed to flatulent cows could reduce greenhouse gas emissions
02:18 April 6, 2009 PDT
Omega 3 fatty acids in fish oils have many documented benefits to humans including the reduction of cholesterol, but what of the benefits to animals and the environment in general? While assisting the heart and circulatory system in animals and improving the meat quality in cattle, it is also, according to researchers at the University College Dublin beneficial in reducing methane levels from flatulence when added to the diet of cattle, meaning it's also good for the environment. Read More
Did salt lakes kill the dinosaurs? And will they kill us?
By Darren Quick
22:54 April 2, 2009 PDT
A new report by an international team of scientists has suggested that the largest mass extinction in the history of the earth may not have been caused by volcanic eruptions, methane hydrate or the impact of an asteroid as previously surmised. It may actually have been triggered by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition to such an extent that vegetation was irretrievably damaged. While this is a lot less dramatic than a volcanic eruption or an asteroid, the effect would be no less devastating and may have implications for us today with forecasts predicting an increase in the surface areas of deserts and salt lakes due to climate change that researchers expect will also lead to an increase in the effects of these halogenated gases. Read More
Climate Change Belief Research - great cause for concern
By Mike Hanlon
03:54 March 25, 2009 PDT
It just goes to show you what a bad state the education system is in when just 51% of the population believe that climate change is caused by human activities. Opinion Research Corporation surveyed 1,000 people in late January and found that 29% believe climate change is occurring naturally, 15% believe climate change needs to be proven scientifically either way and 3% believe climate change doesn’t exist. Oh, and for the record, of those who got it right, 55% were male, which means ... we're no longer sure whether to be more concerned about global warming or global ignorance. Read More
Could changing the color of the sky to counter global warming backfire?
03:38 March 25, 2009 PDT
The concept of delaying global warming by adding particles into the upper atmosphere to cool the climate could unintentionally reduce peak electricity generated by large solar power plants by as much as one-fifth, according to a new study by the National Oceanic and Atmospheric Administration (NOAA). Read More
Indian Ocean temperature link to bushfires
By Mike Hanlon
02:33 March 24, 2009 PDT
March 24, 2009 The weather conditions that lead to Southern Australia’s past two devastating bushfires may be linked to lower than normal sea-surface temperatures in the eastern Indian Ocean, according to CSIRO research presented at the Greenhouse 2009 Conference today. The Ash Wednesday bushfires in February 1983 and the Black Saturday bushfires in February were preceded by months of very dry conditions. Those dry conditions were partly caused by cooler ocean sea-surface temperatures in the eastern Indian Ocean, which contributed to a substantial reduction in spring-time rainfall over the south-east of Australia. Read More
The next step for carbon sequestration?
By Darren Quick
17:22 March 11, 2009 PDT
The debate about the benefits of using Carbon Capture and Sequestration (CCS) to fight against climate change is ongoing. One one hand there are reservations regarding suitable sequestration sites that provide sufficient security to store CO2 for centuries as well as the cost of implementing such a system, which could draw important funds away from the development of renewable energy technologies. On the other, we are still heavily reliant on burning fossil fuels to produce energy and this infrastructure can't be replaced overnight. CCS is obviously attractive to existing power generation companies as it allows them to keep hold of their existing infrastructure and for this reason, it is more than likely that CSS schemes will continue to gather momentum. So where to we can CO2 be stored? Scientists at Columbia University’s Earth Institute and the U.S. Geological Survey have produced a new report that maps large rock formations in the United States that can also absorb CO2 and are exploring ways to speed up the CCS process. Read More
Microbial toxin-eating technology trial a success
21:06 February 19, 2009 PST
We live in a society that is creating more toxic chemicals everyday. In nearly all forms of production many undesirable chemicals get produced which cannot simply be disposed of, even in industrial settings. If these chemicals are tipped down the sink or flushed down the toilet they will end up back in our water streams and pollute our precious and already strained environment. The standard solution is to transport harmful chemicals to distant chemical treatment facilities where they can be broken down and disposed of responsibly, but these processes use a lot of energy and often produce many undesirable byproducts such as oily polluting residues that end up in landfill. That's where this ecologically friendly bacterial treatment from Microbial Solutions' comes in. Microcycle, as it's known, turns toxic exhausted metal working fluids into grey water that is safe to dispose of into the sewerage system. Read More
Waste2tricity - turning garbage into electricity
By Darren Quick
20:19 February 17, 2009 PST
It’s common knowledge that the majority of electricity generation and waste disposal methods currently in widespread use are not very environmentally friendly. New British venture Waste2tricity aims to kill two environmentally damaging birds with one stone by taking carbon based waste, either municipal solid waste (MSW) or waste from business and industry, and converting it into clean electricity, thereby reducing the amount of rubbish going to landfill and potentially making a significant contribution to the UK electricity supply. Read More
30 petabyte storage facility for climate and weather records
By Darren Quick
21:48 November 16, 2008 PST
Analysis of the Earth’s climate relies on and generates a huge amount of data. No one knows this better than the folks at the National Center for Atmospheric Research (NCAR), who have announced the arrival of AMSTAR, a new digital storage library that will preserve and protect 30 petabytes of valuable scientific data for the next 15 to 20 years. The new system, designed by Sun Microsystems, Inc. and based on the Sun StorageTek SL8500 Modular Library, will give NCAR five times its current storage capacity, enabling it to generate increasingly sophisticated computer studies of Earth’s climate. Read More
Cool Earth Solar: pursuing a viable alternative to fossil fuels
By Darren Quick
00:20 October 25, 2008 PDT
There is no doubt that mankind stands at a pivotal point in our history in relation to our consumption of global resources and the resultant impact on the planet on which we live. By far the biggest concern is our ever-growing appetite for energy to power the lifestyles we have grown not only accustomed to, but also dependent upon. Solar is one answer with great potential, but economics and the amount of power it can produce in comparison to fossil fuel power stations has held it back so far. Now new approaches like Cool Earth’s collectors are becoming advanced enough to effectively tackle these problems with technology that relies on inexpensive and free materials, is scalable, able to compete economically with fossil fuel power plants and is capable of delivering not just megawatts, but gigawatts of clean power. Read More
Google's vision for a greener planet
23:55 October 5, 2008 PDT
While the current Wall Street financial crisis has many on edge in regard to the short term future of the economy, Google has displayed some far-sighted corporate leadership in releasing its plan for how to reduce fossil fuel use by 2030. "Clean Energy 2030" is designed to stimulate debate on a range of energy consumption issues and includes proposals to slash vehicle oil consumption and CO2 emissions by 38% and reduce US reliance on fossil fuel-based electricity generation by 88% through a significant boost to solar, wind and geothermal output. Importantly, the report also focusses on the "win-win" potential for this aggressive attack on climate change, citing a figure of $1.0 trillion net savings over the 22-year life of the plan. Read More
MAVEN: NASA's post-Phoenix Mars probe
By Kyle Sherer
00:27 September 22, 2008 PDT
After the Phoenix lander has finished scraping away at Martian soil, the MAVEN spacecraft will examine the atmosphere of the red planet. The US$485 million Mars Atmosphere and Volatile EvolutioN program is the second stage of NASA’s Mars Scout program, following the successful Phoenix mission. The MAVEN craft will study the planet’s atmospheric gases, upper atmosphere, solar wind, ionosphere, planetary corona, solar EUV and SEPS, and investigate past climate change. Read More
Sheraton’s Wild Horse Pass Resort launches GeoGreen sustainability program
By Jude Garvey
17:09 September 8, 2008 PDT
The Sheraton Wild Horse Pass Resort & Spa has launched a new initiative called GeoGreen which is designed to ensure environmental and cultural sustainability whilst maintaining the heritage and well-being of the Gila River Indian Community. Guests will find a restaurant menu featuring local ingredients sourced from Gila River farms, grounds filled with native plants watered by a timed drip system, local businesses being engaged in the process of keeping the resort green and will have the opportunity to be exposed to the culture of the Pima and Maricopa people. Read More
Freedom Glen
- November 25, 2009 @ 02:47 UTC
