Friday, May 27, 2011

alternative energy

solar panels can be a clean sorce of alternative energy which harness the suns rays and converts it into usable energy. the draw backs to this method is that the sun is not allways going to be readaly available and it is quite expensive to make and install.

deforestation

this is an example of tropical deforestation, usually happens in brazil or in the amazon. this happens because the people need to use the land for other porpeses klike farming, or they need it for fuel. the main reason is money though. some things like restricions or premits could be enforced to help stop this.

oil spills



the exxon valadez oil spill occured in prince william sund when the exxon valedez ran a ground on the way to lomg beach cali, spilling 750000barrels of crude oil into the ocean. it can be cleaned up by booms surrounding the oil and then it can be skimmed off the surface. chemicals can also help to break it down and help disperse the oil in a less harmful way

Tidal Energy

This is a picture of an intrument designed to use waves to make energy. It's called and offshore turbine. The benefits of tidal energy are that once you build it, tidal power is free. It produces no greenhouse gases or other waste. It needs no fuel. Some drawbacks of it are that it only provides power for about ten hours a day, when the tide is actually moving in or out. There are few suitable sites for tidal barrages.

Tropical Deforestation



This is a picture of Tropical Deforestation. It's happening in places such as the Amazon and Brazil. Deforestation is happening for many reasons. Usually it happens because people want to use trees for fuel or use the land for other purposes and most of all because they want to make money. Some Solutions would be to place certain restrictions on cutting, and to replant trees.

Toxic Chemical Pollution

Toxic chemical pollution is when a toxic substance that is not naturally occuring substance, enters into an aquatic ecosystem. The greatest contributors to toxic pollution are herbicides, pesticides and industrial compounds. This picture shows a pipe spewing toxic chemicals directly into a river. Once the toxic chemicals enter the river or stream there is not much that can be done. The only thing that can be done is ways to prevent it from happening, such as citizens can monitor streams and keep a watchful eye on industry.


Thursday, May 26, 2011

Solar



Energy can be taken from the sun by use of solar panels. The advantages of solar energy is that its abundant and free to take. The drawbacks are that these panels can be very expensive and do need to be replaced over time.

Alternative Energy: Biomass

Biomass is an alternative energy
source that is used. Its benefits are that it can provide energy by burning waste from trees and other things, which in turn provide steam and energy to power things. Drawbacks of biomass are that it contributes little to our overall energy resources, and is not efficient enough for us to solely rely on.

Coniferous Deforestation



Coniferous deforestation is happening in places such as Canada. It is happening because of logging, and the greedy lumber companies which are clear cutting these forests. It is resulting in the loss of habitat for some species. Solutions are to place restrictions such as selective cutting.

hydroelectric dams



PROS: Clean alternative power source. Safer than altnerative options like nuclear power. It can store rain water directly from the river itself. Controls flooding and provides recreational activites (boating, swimming, fishing, ect.)



CONS: You must gloof a huge area of land for the dam to work. They are expensive to build. Disrupts natural seasonal changes in the river, and ecosystems can be destroyed.



-----> geodude.

Wednesday, May 25, 2011

The sun as an energy ( Solar Energy to be technical :)



Benefits : Can be harnessed easily and the sun will be around for a long time. Solar panels are made out of recycled materials.... maybe.



Also, massive amounts of energy can be stored and used at one time.






Drawbacks: Intermitent source of enery, expensive to install solar panels.


Nuclear power

Benifits Clean power and lots of power

Draw back toxic waste natural break down is hundreds of years


Solar power is a very useful source of energy as it harnesses the sun's energy to produce electricity. It can be sold domestically and can be used to power personal objects such as houses and other buildings. They are reletivly cheap to produce and to install, making it a very popular source of energy. Unfortunatly, it is an intermitant source of energy and is not always available.


Wind turbines are a good alternatice energy source. They are quiet and generate enough energy to sustaine us. Some drawbacks are they are really expensive, take up quite a bit of space, and if there is no wind then there is no energy.

Thursday, May 19, 2011


Tropical Rainforest. The rainforest is getting cut down at an alarming rate. Thousands of species are going extinct nearly everyday. We can help by recycling, donate money to the NWP, and use recycled materials like paper.

CLEAR CUTTING

Coniferous Deforestation:
Clear cutting is a practice in which all trees in an area are uniformly cut down, meaning taking mass groups of trees and chopping them all down.

Some companys are doing it for scientific research, safety and economic reasons. Detractors clear cut ruining habitats and helping climate change. Better way to go would be selective cutting everywhere , but that costs more money.


Coniferous Deforestation

The current extensive logging in the Coniferous Forest could cause their disappearance. Why? Because lumber companies want the money that is made from cutting down these forests and arent concerned with the impact afterwards. Animals living in these coniferous forests, habitats are being destroyed and this is making it harder for them to find food to live.

Wednesday, May 18, 2011

Coniferous Deforestation


Why Forestry?
- valuable source of timber and paper
Solutions
- selective cutting - more sustainable

YAYA STRIP CUTTING



This is coniferous strip cutting in Canada...Why? Because lumber supply companies are greedy and there is a constant demand for lumber. but luckily this is only strip cutting, not clear cutting. The consequenses are not that big compared to clear cutting, the animals still have areas to migrate to and there is shade and the other trees can seed the area that was cut. A more sustainable way to cut forests would be selective cutting, everywhere, but that is alot more expensive. Lumber is money.



Deforestation in the Tropics






Deforestation is the clearance of naturally occurring forests by logging and burning.Tropical deforestation accounts for 20 percent of all human-caused carbon emission in the world, and the governors signing these MOUs with us manage more than 60 percent of the world's tropical forest land. That map shows where. When??? ALL THE TIME....

YAYA OILSPILLS



CAUSES: TRUCKERS AND BOATS OUT IN THE WATER CAN EASILY CRASH INTO REEFS, ROCKS OR OTHER BOATS CAUSING OIL TO LEEK INTO THE WATER



SOLUTIONS: FILTERING WATER AND BIOLOGICAL HELP(PEOPLE)



Eutrophication



Eutrophication is the process where an increase of nitrogen and phosphorous (fertilizers) in a body of water causes an increased growth of algae. With these chemicals in the water, organisms can no longer live in the lake or river.


Deforresting






this photo is from a farm taking over the forrest it also show the buring of the land to gain nutitents

Loosestrife (PURPLE)



Purple loosestrife is an invasive perennial weed that was introduced into North America in the early 1800s. It is believed that it was introduced as a contaminant in European ship ballast and as a medicinal herb. It is highly agressive plant invader of wetlands. It can produce up to 2.7 million seeds per year, and spreads across approximately 480,000 additional hectares of wetlands each year. Ecosystems upset cause the local fauna do not eat the plant.
This is a clear cut of tropical rainforest in brazil. By clearcutting an area with such rich biodiversity, plants and animals are put in danger. Solutions to this could be not clear cutting and instead selective logging.



This is happening in the tropical rainforest, it is happening because there is a need for more land for farming, money, and the loss of the property owners land. It is happening by the farmers clearing the land and ruining the soil year after year. The consequences are that in a few years they can no longer farm on the land, as well the trees dont grow back fast so the vegetation is not natural to the original cleared spot. The solutions that can be helped to save the forest is to not clear the land just to farm.

Clear Cutting



In this picture a part of the amazon which has been clear cutted. The rainforest soil is too poor to support agriculture. A way to prevent clear cutting is making an enviromental organization to raise money and save the forest.


oil spill in goldstream



an oil spill was caused by a drunk driver coming into victoria he crashed his tanker spilling all of the fuel aboard

Oil Spills



Oil spills can occur when leaks in oil tankers and other accidents cause oil to leak into the ocean. It caues many deaths of animals in the ocean and destorys the ecosystem. Oil spills dont have many solutions. First you try to contain all the spill and keep it together. Ways to contan it would be a skimmer that picks up the oil on the surfaces of the water.






Oil Spill



Oil spills usually occur because someone somewhere driving a boat crashes into a coral reef or a big rock out in sea, leading the boat to spill over 2 million gallons of oil. This effects all sea living creatures, sea otters, seals, whales etc. There are many ways to get rid of the oil in the water by example : filtering water, biological helpers out in the water or chemicals released to seperate water from the oil, which then gets scooped out of the water.






Coniferous Strip Cutting In Canada



This is coniferous forest deforestation in canada. Why? Because lumber supply companies are greedy but luckily this is only strip cutting, not clear cutting. The consequenses are not that big, the animals still have areas to migrate to and there is shade and the other trees can seed the area that was cut. A more sustainable way to cut forests would be selective cutting, everywhere, but lumber = money.

Post #17 Deforestation



The image on the left is an image of tropical deforestation in Brazil, South America. The governement has issued free plots of land to poor people in Brazil under the condition that they clear it if they wish to keep it. The problem with this however is after a short time (5-10 years) of cattle grazing the land becomes infertile and uninhabitable. So the the cattle grazers must move onto a new plot of land and clear yet more rainforest. This is a viscious cycle that may untilamtely lead to the death of tropical rainforests in this part of the world. The consequences of these actions is vast amount of cleared, compacted and uninhabitable tracks of land that none can use. Because it has no use and all the biodiversity of the tropical rainforest in this area is now gone. Thereby rendering huge amounts of once lush tropical rainforest now useless barren grassland. Crop rotation or leaving parts of the land they clear fallow for a year could prevent the destruction the land, making it so after the land is cleared it can still be maintained as fertile land. This in turn will halt further clearing and destruction of the land because a sufficient amount of productive land is in use and is sustainable.

Htwo0 abusesssssss

An Oil spill is an release of liquid petroleum hydrocarbon into the enviorment due to human activity, and is a form of pollution. Spills can take months or even years to clean up, and oil spills are extremely harmful to animals and the enviorment. A solution could be secondary containment which are methods to prevent releases of oil.

Wednesday, May 11, 2011

Oil Pollution


This is a picture of the Exxon Valdez oil spill that occured in Alaska on March 24, 1989. The spill occured upon hitting coral reef off the coast of Alaska. It quickly spread through the ocean waters and affected the wildlife environment. To prevent future incidents like this, equipping ships with double hulls and ensuring they are sufficiently staffed are both measures that have already been put in place.

Thermal Pollution

Thermal pollution is the degredation of water quality by any process that changes water temperature. A solution for this is to stop companies from pooring toxic waste into the enviroment so that the temperature stays regulated


Oil Spills are a big problem cause by ships transporting oil hitting something then leaking. It can also be cause by oil pipes bursting. We can stop this by using oil less and using alternate sources of power, like wind turbines, and solar panels.

Farm



This is a farm in the state of New Mexico where fresh water runoff from the farm is being contaminated with harmful chemicals and then let directly back into the water cycle. This can be harmful to fish and other wildlife aswell as humans. Potential solutions to this problem would be for the farm to grow organic produce without the use of pesticides.


Massive garbage collection areas are scattered across the pacific ocean. These are devistating to many ecosystems as they kill many species every year. The only way to solve this issue is to send large vessles out to sea to collect the grabage and bring it back to land.

Oil Spill



An Oil spill is an release of liquid petroleum hydrocarbon into the enviorment due to human activity, and is a form of pollution. Spills can take months or even years to clean up, and oil spills are extremely harmful to animals and the enviorment. A solution could be secondary containment which are methods to prevent releases of oil.


Solutions to toxic chemical pollution would be to be more cautious about what we dispose of in either down the sink or in the garbage. To have filters in drainage systems so it can catch some of the pollutants. To create certain laws to not have certain products that cause harmful damage to the environment.

Eutro..phic...waaat?



Eutriphication is the build up of algae. It fertilizes bodies of water with nitrogen and phosphorus. It creates major changes in plant and animal populations. It also degrades water and habitat quality :( Ways you can prevent eutriphication is to STOP USING SO MANY CHEMICALS AND FERTILIZERS WHEN GARDENING! ... or around a body of water.

Oil Spill



In the photo oil is being leaked out of a boat. In order to avoid disasters like there, building a stronger boat would be a good idea. Or making sure to have enough workers on the boat to stear the ship if someone is to fall asleep. Like the incident where the captian was drunk and passed out cause the boat to hit a rock and spill oil.

sewage

Sewage causes a problem for local wild life as well as to people. In this picture a beach is contaminated and un suitable to have contract with. It can kill species of animals or make them sick. A solution is not pumping sewage into the ocean and having a sewage treatment plan.

Post#16 Water Abuses



The image on the left is an image of mining polluting fresh water sources, heavy metals such as mercury and cadmium seep into our rivers and lakes and pollute our freshwater reserves. This kills fish and surrounding wildlife and makes our drinking water unusable. A solution to this could be filtration systems at mining sites to ensure that these heavy metals are not seeping into our natural environment, taxes on this sort of pollution to discourage it and analternative to storing or ridding the mining site of thesetoxins without destroying the natural habitat.

Sunday, May 8, 2011

Purple loosestrife


Purple loosestrife is an invasive perennial weed that was introduced into North America in the early 1800s. It is believed that it was introduced as a contaminant in European ship ballast and as a medicinal herb. It is highly agressive plant invader of wetlands. It can produce up to 2.7 million seeds per year, and spreads across approximately 480,000 additional hectares of wetlands each year. Ecosystems are upset by it, because local fauna do not eat the plant.

Tropical Rainforest


The tropical rainforest is hot with high temperatures and fairly continuous precipitation. This biome is located right near the equator therefore the climate here is warm, very wet and constant due to the position of the sun over the equator; it's always directly overhead.


Desert Biome Adaptaions


Adaptations for the cactus include: small and spiky leaves that reduce evaporation of water. It also prevents loss of water. The cactus also has a thick and juicy stem that stores water.


Scorpions have have many adaptations for desert living. They have extra layers of fat on their exoskeleton which minimizes water loss. Most are active at night, and spend their days where it is cool and moist under rocks. Scorpions also derive most of their water from their food.
The burmese python is an enormous constricting snake which can reach lengths of over 5 metres. The python is causing great damage in the southeast US such as the Florida everglades. In the last five years over 150 000 of these snakes have been imported for the pet trade, many of which have escaped of been released into the tropical florida climate. The pythons make themselves home and with their great size take over the habitat of many native species.



The Tropical rainforest biome is hot and wet all year long. Since the biome is very near the equator, there is very little variance in temperature. Downpoars are very common and the annual precipitation is around 400 inches. The temperature is 25-30 degrees celcius throughout the year.