Monday, December 6, 2010

Northern Wildfires Threaten Runaway Climate Change, Study Reveals

Dominic Stracqualursi

The article “Northern Wildfires Threaten Runaway Climate Change, Study Reveals”, which was published on December 10, 2011, discusses another dangerous effect of climate change. Climate change is causing wildfires that are already dangerous enough to grow even bigger. As serious of a problem as the wild fires are in a direct effect, it is the indirect effect that is proving to be more dangerous in the long run. As the fires increase so does the amount of green house gases, which are being released into the atmosphere. It has become such a grave issue because of the cyclical nature of the problem. The fires are growing in size because of the increase in climate temperature. The green house gases being released are greater because of the bigger fires, and the greater the amount of green house gases that enter the atmosphere the higher the climate temperature raises. The article goes on to say, “This cycle can be broken for a number of reasons, but likely not without dramatic changes to the boreal forest as we currently know it”. This article relates to our earth science class because we have covered the whole that is being created in our atmosphere. We learned that the hole in the ozone is because of CDC’s that are released in greenhouse gases like the ones in the fires. It is the hole in the ozone that causes the temperature of the earth to increase. Without the protection of our ozone we are exposed to greater heat from the sun and this greater can have effects like the melting of sea ice or an increase of wildfires. I think that the issue of global warming is not taken seriously enough by most people in today’s world and is clearly a source of a lot of the rising problems in the world. There have been a large number of effects that can be correlated to the rise of climate temperatures, with wildfires just being the most recent instance. I think that drastic steps need to be taken to reduce the amount of green house gases that are being pumped into the atmosphere before we have even more serious effects that have to be dealt with. As of right now there aren’t too many blatant life-altering effects of climate change. However, if we continue to not care about the pollution to the atmosphere there will be life-altering effects that future generations are going to have to deal.


"Northern Wildfires Threaten Runaway Climate Change, Study Reveals." Science Daily: News & Articles in Science, Health, Environment & Technology. 05 Dec. 2010. Web. 06 Dec. 2010. .

Sunday, December 5, 2010

Dark Matter Could Transfer Energy in the Sun by Steven Priestley (Extra Credit)

In this article Researchers from the Institute for Corpuscular Physics (IFIC) and other European groups have studied the effects of the presence of dark matter in the Sun. According to Mark Taoso (researcher at the IFIC) they assume that the dark matter particles interact weakly with the Sun’s atoms, and what they have done was calculated at what levels the interactions can occur. The purpose of this would give a better description of the structure and evolution of the Sun. According to calculations low mass dark matter particles could be transferring energy from the core to the external parts of the Sun, which would inevitably affect the quantity of neutrinos that reach Earth. (Science Daily) According to Models the WIMP’S (Weakly Interacting Massive Particles) interact weakly with other normal ones , such as atoms and could be building up on the inside of stars. Scientist believe that the majority dark matter particles gather together in the center of the Sun interacting and exchanging with the solar atoms, the WIMP’S transport the energy from the burning central core to the cooler parts. Taso refers  to "This effect produces a cooling down of the core, the region from where the neutrinos originate due to the nuclear reactions of the Sun,". The neutrinos that reach Earth can be measured by means of different techniques. The transport of energy by these particles depends on the likelihood of them interacting with the atoms, and the "size" of these interactions is related to the reduction in the neutrino fluctuation. "As a result, current data about solar neutrinos can be used to put limits on the extent of the interactions between dark matter and atoms, and using numerical codes we have proved that certain values correspond to a reduction in the flux of solar neutrinos and clash with the measurements," Taoso reveals. The team has applied their calculations to better understand the effects of low mass dark matter particles  and Taoso concludes that their calculations show that the modifications of the star’s structure are too small to support that the WIMP’S cannot explain the problem of the composition of the Sun. Therefore the dark matter is not giving a better description of the structure and description of the Sun. (Science Daily)

Plataforma SINC. "Dark matter could transfer energy in the Sun." ScienceDaily 3 December 2010. 5 December 2010 .

Coastal Wetlands Likely to Disappear This Century

Brian Cary

"Many Coastal Wetlands Likely to Disappear This Century, Scientists Say" is an article posted in Science Daily on December 3, 2010. This article discusses how wetlands across the globe will be impacted by climate change and sea-level rise. According to U.S. Geological Survey scientists, rapid sea-level rise scenarios show that most wetlands located along coasts will be destroyed by the end of the 21st century. Slow sea-level rise projections show that there would be a chance of survival for some wetlands, but survival would be determined by sediment availability in these wetlands. The higher the sediment in the wetland, the greater the chance of survival. This is because water floods the wetland, causing sediment to be carried upstream and raise the wetlands elevation. The rate at which sea level rises is mostly dependent on future climate changes. Wetlands are primarily important to the environment because they play a critical part in absorbing the energy of coastal storms, which is a direct effect on the safety of humans. They also act as a habitat for migratory birds, preserve shorelines, and absorb water pollutants. I believe this article relates to this course because it involves things that we have discussed such as climate change, air pollution, and the relationship between sediment deposit and water flow. I believe the most important aspect that this article touches on though is how much damage mankind seems to be doing on its own environment. Wetlands serve a very important purpose in our ecosystem, especially along coastlines, and the thought of complete wetland extinction within the next 90 years is scary. It shows just how fast change can happen in the ecosystem, even on a global scale. The biggest effect on us humans would likely be the loss of a energy absorbing buffer zone between us and coastal storms as they begin to hit land. Without wetlands, these storms will hit with more force and potentially do much more damage to our coastal cities. Almost every part of our ecosystem would be negatively effected by the loss of wetlands. Humans do have the ability to make a change for the better, though. As we learned earlier this semester, 28% of greenhouse gas emissions which lead to climate change are created by human transportation and another 5% is from residential use. These numbers that any ordinary person can help cut down on and help preserve not only our wetlands, but all of our bodies of water.

United States Geological Survey (2010, December 3). Many coastal wetlands likely to disappear this century, scientists say.ScienceDaily. Retrieved December 5, 2010, from http://www.sciencedaily.com­/releases/2010/12/101201134256.htm

Snow from Space: Satellite Imagery of Snow-Bound UK by Steven Priestley

In an article from sciencedaily.com European Space Agency satellite instruments have been monitoring the icy blast in the UK from their vantage points in space. Meaning Scientists used two instruments MERIS, and AATSR which illustrate images of a snow-bound UK from observations took on the 29th of November and the 1st of December. The MERIS image shows from white snow and clouds to green vegetation opposed to the AASTR images which depict non-snow areas in red to show the differences in the snow. The amount of snow covered in the images within two days is visibly apparent. Professor John Remedios Head of Earth Observation Science at the University of Leiceste says “"These images demonstrate how much our local climate depends on a combination of the climate mean temperature in a given month and the meteorological variability which can produce very cold and very warm months. For the UK, it is another cold winter. At one time a few years ago our children complained that there was never any snow. Now there is plenty!" The AATSR measures climate variables such as sea and land surface temperature, aerosols and clouds opposed to the MERIS instrument which observes vegetation green pigment and ocean color, and their variations over the seasons. These two instruments MERIS and AASTR are hand and hand in determining weather prediction and forecasting. According to Professor Remedios the “AASTR instrument is very good for both measurements for climates and for weather forecasting”. In reference to this article MERIS and AATSR are two vital components in forecasting weather and predicting weather in European Space Agency for the UK. Apparently these recorded images of the UK’s winter by MERIS and AASTR are very beneficial, they show and prove that the two instruments are working well and provide the European Space Agency with vital information so they can predict and forecast accurately and accordingly. The Envisat just recently made an alteration to manage the orbit change to extend the life of MERIS and AATSR to 2013 because it is working so well.   All in all the team of scientist and professionals of the European Space Agency are very impressed and pleased with how the recorded images depict the landscape of the UK. 

(Science Daily)

University of Leicester (2010, December 3). Snow from space: Satellite imagery of snow-bound UK. ScienceDaily. Retrieved December 5, 2010, from http://www.sciencedaily.com /releases/2010/12/101203123517.htm

Friday, December 3, 2010

The Warming of Earth's Lakes by Olivia Raymond (extra credit)

In an article from Science Daily.com “Earth’s Lakes Are Warming, NASA Study Finds” a study conducted by scientists from NASA found that Earth’s bodies of water, especially lakes, have increased “an average warming rate of 0.45 degrees Celsius (0.81 degrees Fahrenheit) per decade, with some lakes warming as much as 1 degree Celsius (1.8 degrees Fahrenheit) per decade”. This increase in temperature has been happening over the past 25 years as a direct result of climate change. Scientists measure the temperature trends of lakes, oceans, rivers, and other bodies of water through the use of data collected from thermal infrared satellites. The researchers from NASA used this method for their study to collect data and found a trend of change of warming water temperatures. The data focused on lake temperatures from night time during the months of “July to September in the Northern Hemisphere and January to March in the Southern Hemisphere”. The negative impacts of warming water in lakes affect the ecosystems that live within these bodies of water. These impacts include “algal blooms that can make a lake toxic to fish or result in the introduction of non-native species that change the lake's natural ecosystem”. NASA’s researchers chose the bodies of water for their study based on large surface area, distance from shore lines, and other unique scientific characteristics. The study found that the largest concentrated area of warming water is in northern Europe. In the United States the southwest was warming more so than the Great Lakes region. This article relates to our class because the hydrosphere is one of the main focuses of our studies in Earth Science. Though the article doesn’t exactly state how we can help stop the warming of our waters I think we can do so by eliminating the emissions of greenhouse gasses. Climate change is a direct result of global warming and is what is causing our waters to warm up. We can help stop or at least decrease this trend by eliminating our carbon foot print and the emissions of Carbon Dioxide and other toxins into our atmosphere.


NASA/Jet Propulsion Laboratory (2010, November 29). Earth's lakes are warming, NASA study finds. ScienceDaily. Retrieved December 3, 2010, from http://www.sciencedaily.com¬ /releases/2010/11/101128220357.htm

Sunday, November 28, 2010

Global Warming Can Cool Down Temperatures


by Dana Tricarico

An article written posted on Science Daily on November 17, 2010, discusses how the overall warming of Earth’s northern half could potentially make colder winters. This is due to the fact that, as sea-ice shrinks in the eastern Arctic, it could cause some regional heating in lower levels of air. According to a study recently published in the Journal of Geophysical Research, this could create huge abnormalities as far as atmospheric airstreams are concerned, which could, in turn, lead to an overall cooling of northern continents. According to Vladimir Petoukhov, the lead author of the study and climate scientist at the Potsdam Institute for Climate Impact Research, these changes could triple the probability of colder winters in Europe and Northern Asia (Science Daily).

This concept seems to make sense, however, I think it will take a significant amount of time to really determine this. Currently, researchers are using a computer model called ECHAM5, which focuses on the Barents-Kara Sea, where a reduction of ice was observed in the winter of 2005-2006. Using this, they were able to figure out that the air temperatures in that area ranged from warming to cooling, then back to warming, as the sea ice decreased (Science Daily). This helps support the viewpoint, however, it shows that temperatures are still fluctuating to the point where there is no concrete evidence yet. Temperatures in Siberia were 10 degrees below the normal level in the winter of 2005-2006, yet in the Eastern Arctic; temperatures were up to 14 degrees above normal temperature at the same time. Until temperatures become consistent in either rising or falling, claims cannot be made as to how sea ice melting will affect the planet (Science Daily).

This relates to our course, because the main topics we discussed, that earth science touches on, has to do with climate and weather. Earth science is also the study of earth, its functions and what affects it. This article’s topic, and this phenomena in general, is the function of earth- how temperature can entirely change the severity of certain seasons. This does not focus on the day-to-day weather; however, it does focus on the longtime probability of climate change and how this will later affect it.



Works Cited:

"Global Warming Could Cool down Northern Temperatures in Winter." Science Daily: News & Articles in Science, Health, Environment & Technology. 17 Nov. 2010. Web. 28 Nov. 2010. .

Biodiversity At Risk by Olivia Raymond

In an article from the website Science Daily "Extinctions Expected to Increase Strongly Over the Century" biodiversity is at an all time risk. Life scientists are predicting that within the 21st-century the global decline in biodiversity is growing strong. There is a huge threat of extinctions, decline in abundance of species, and overall species distribution. Predicting future trends of biodiversity was considered to be too complex but life science specialists are now able to using the same methods as Climatologists. These predictions are not completely certain but if human and economic conditions do not change the possibility is greater. What is the major cause for this threat to our biodiversity? Simply answered it’s us, humans. Activities such as urbanization, air and water pollution and the abuse of our natural resources have negatively impacted the habitats of many species. The homes of animals and plants are being destroyed because humans are cutting down forests to make way for housing and industrial buildings, over fishing, and causing climate change through the pollution of air with green house gasses. Scientists say if we continue with these bad habits and processes the overall abundance of terrestrial species could diminish from 10 to 20% during the first half of the century. There are ways we can help save our plants and animals from a grim future. We can do so by reducing greenhouse gas emissions, stopping large-scale deforestation, create more animal reserves, enforce fishing regulations, and being more efficient in agriculture. Having biodiversity is important because it allows for variation between species and habitats as well as more resources. Without it there would be a disturbance in the synergy of our ecosystem. This topic relates to our class because Earth Science deals with understanding earth systems and processes and how humans impact those systems. Our plants and animals are at risk of extinction because of human’s ignorant behavior. Everyone has a responsibility to take care of our Earth and the future of all its inhabitants. We have to change our bad habits and begin to work for the better of our environment. The predictions made by the scientist’s show that the future abundance of our animals and their overall distribution are at great risk and the direct cause is poor human behavior. We can no longer continue our destructive habits. We have to begin to work to protect our resources and all Earth’s inhabitants.

"Extinctions Expected to Increase Strongly over the Century." Science Daily: News & Articles in Science, Health, Environment & Technology. Web. 28 Nov. 2010. .