Climate

2010: The Year of Compressed Air Energy Storage?
August 6, 2010 08:36 AM - David Link, Matter Network

There are signs that 2010 could be the coming out party for Compressed Air Energy Storage (CAES). With the onslaught of large wind and solar deployments that will be added to the grid to meet state renewable portfolio standards requirements, there is a lot of buzz about the need for energy storage systems, particularly bulk energy storage. Bulk systems can store megawatt-scale amounts of energy produced during off peak times. They then discharge that energy during peak times, when prices are higher, and over many hours.

The Views of Mars
August 5, 2010 04:40 PM - Andy Soos, ENN

Of all the planets in our solar system Mars has always been the one most dreamers think of. Many science fiction myths have been based on Mars such as Edgar Rice Burroughs Barsoom and its many canals as well as the Ray Bradbury Martian Chronicles. All dreamed of a friendlier Mars than has been found. Now all can see detailed images of Mars. The latest set of new images from the telescopic High Resolution Imaging Science Experiment Camera on NASA's Mars Reconnaissance Orbiter offers detailed views of diverse Martian landscapes.

Climate Models and Warming
August 4, 2010 03:16 PM - Andy Soos, ENN

Climate models use various methods to simulate the interactions of the atmosphere, oceans, land surface, and ice. All climate models take account of incoming energy as short wave electromagnetic radiation, chiefly visible and short wave infrared, as well as outgoing energy as long wave infrared electromagnetic radiation from the earth. Any imbalance results in a change in temperature. The most talked about models of recent years have been those relating temperature to emissions of carbon dioxide. These models project an upward trend in the surface temperature record, as well as a more rapid increase in temperature at higher altitudes. Researchers at the Max Planck Institute for Meteorology in Hamburg have developed a new model that specifies the maximum volumes of carbon dioxide that humans may emit to remain below the increased climate warming of two degrees Celsius. To do this, the scientists incorporated into their calculations data relating to the carbon cycle, namely the volume of carbon dioxide absorbed and released by the oceans and forests.

Third Round of Climate Talks Begin in Bonn
August 4, 2010 09:09 AM - GlobalWarmingisReal, Global Warming is Real

The third round of UN climate change negotiations this year kicked off on Monday with representatives from 178 governments meeting in Bonn, Germany. The Bonn UN Climate Change Conference (2 to 6 August) is designed to prepare the outcomes of the UN Climate Change Conference in Cancún in November and December.

Solar Futures
August 3, 2010 02:33 PM - Andy Soos, ENN

Solar power is the generation of electricity from sunlight. This can be direct as with photovoltaics, or indirect as with concentrating the sun's rays to boil water which is then used to provide power. Solar energy can be obtained in a variety of different ways. Passive solar occurs when you build your house in a manner that takes advantage of the low angle winter sun and/or when the mass of your house is used to absorb the sun’s heat in winter. In addition, passive solar also refers to keeping your house cooler in the winter months by making adjustments that include placing trees and awnings along the south side of a house.

International Ice Core Team Hits Bedrock in Greenland
August 3, 2010 09:52 AM - David A Gabel, ENN

Next to Antarctica, Greenland is home to the largest ice sheet on Earth. Scientists in the frigid north of this enormous island have achieved quite an accomplishment by drilling all the way to the bedrock under the ice. On Tuesday, July 27, 2010 at the North Greenland Eemian Ice Drilling site (NEEM), the team completed their drilling to a depth of 2537.36 meters (1.58 miles). The Eemian is an interglacial period, 115,000 to 130,000 years ago, when global temperatures were 2-3 degrees Celsius (3-5 F) higher than they are today. Sea levels were five meters higher, but ice still existed on Greenland. The researchers believe this may useful for predictions of future climates.

Renewable Power Users and Sources
August 2, 2010 03:42 PM - Andy Soos, ENN

Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable as opposed to fossil fuels for example which once gone are gone. In 2008, about 19% of global final energy consumption came from renewables, with 13% coming from traditional biomass, which is mainly used for heating, and 3.2% from hydroelectricity. The EPA has just named the 50 green power partners (individual purchasing sources or companies) using the most renewable electricity. The Green Power Partnership’s top purchasers use more than 12 billion kilowatt-hours (kWh) of green power annually, equivalent to the annual carbon dioxide (CO2) emissions from the electricity use of more than 1 million average American homes. Green Power users pollute less and do not use up non-renewable sources.

Backbone of marine food chain in alarming decline
July 30, 2010 08:36 AM - Jeremy Hance, MONGABAY.COM

Tiny marine algae, known as phytoplankton, are the backbone of the marine food chain, yet a new study in Nature has found that this backbone is disintegrating. Researchers discovered that since 1950 phytoplankton has declined by approximately 40 percent across the Northern Hemisphere, a decline that corresponds to warming waters due to climate change. Given that these microscopic plants feed the oceans' abundance all the way up the food chain—from zooplankton to fish to seabird to sharks to humans—the decline has likely impacted the very structure of the ocean.

Ten key indicators show global warming "undeniable"
July 29, 2010 06:15 AM - Deborah Zabarenko, Reuters

Melting glaciers, more humid air and eight other key indicators show that global warming is undeniable, scientists said on Wednesday, citing a new comprehensive review of the last decade of climate data. Without addressing why this is happening, the researchers said there was no doubt that every decade on Earth since the 1980s has been hotter than the previous one, and that the planet has been warming for the last half-century. This confirms the findings of the U.N. Intergovernmental Panel on Climate Change, which reported in 2007 with 90 percent certainty that climate change is occurring. The IPCC also said that human activities contribute to this phenomenon. The new report was released after U.S. Senate Democrats delayed any possible legislation to curb climate change until September at the earliest. Prospects for U.S. climate change legislation this year are considered slim.

What to do with the CO2
July 26, 2010 05:12 PM - Andy Soos, ENN

Burning fuel releases a lot of carbon dioxide. For more is emitted than any other air emission. What can we do with it all? A basic reuse of carbon dioxide or CO2 is to have plants and trees use it to make new plants and trees. Recently, the U.S. government has been funding more than $100 million to six research projects that will turn carbon dioxide into fuel, plastics, cement and more. Though the US is spending some money even more comes from private investors.

First | Previous | 317 | 318 | 319 | 320 | 321 | Next | Last