Essay on greenhouse effect In the U.S., our energy-related activities are known to account for three-quarters of our human-generated greenhouse gas emissions. These are usually expressed in the form of carbon dioxide emissions from burning fossil fuels. Also, more than half the energy-related emissions are known to come from large stationary sources.

Cassini-Huygens Mission Essay The word combination “Cassini-Huygens mission” is hardly not known to any person who is somehow connected to science or al least interest in it. This is primarily due to the significance of this mission and its specifics. Generally speaking, “Cassini-Huygens mission” is a joint NASA/ESA/ASI mission created in order to explore the mysterious planet Saturn and its moons, including Titan.

Ground Based Telescopes Essay Geosynchronous orbiting telescopes differ from the ground-based telescope, as they are situated in the zone of the equator, high over the atmosphere. With the help of this type of telescopes the major problem of obtaining objective, detailed data and images from the bodies around Earth such as stars. The importance of geosynchronous orbiting telescopes lies in their ability to see the needed object directly and not through the whole atmosphere. This ability enlarges their efficiency and accuracy. Second, as it was mentioned the science impact of geosynchronous orbiting telescopes is measured as 30-40% of all data referred, while ground based telescopes outnumber them greatly. They are 15-20 times more efficient then the ground based ones [6]. While ground based telescopes contribute a lot to the exploration of the space, they are still much less efficient them the geosynchronous orbiting ones. Their main disadvantage is their high cost of production. Narrow scientific problem require geosynchronous orbiting telescopes, because detailed tasks cannot be managed by the ground-based telescopes. Manned space missions function as the programs that exist to maintain the process of launching humans into space. One of the most well-known representatives of such missions is the International Space Station.

The Physical Geography of the Mohave Desert Essay The Mohave Desert is a territory situated in the Southwest of the North America continent. It is in the Southeastern California at 35° to 36° latitude North and 115° to 117° longitude East [1]. It includes the territory not only of California, but also parts of Nevada, Arizona and Utah. Sierra Nevada Mountains that play a great role in the Mohave’s climate formation are situated to the west of the desert. The closest larger water body is the Colorado River.

Essay on climate change - Kyoto agreement The conclusion of Kyoto agreement a hundred years ago could ostensibly save the Planet as its renewable resources are permanently decreasing. At present, both nuclear energy and alternative energy sources are applied worldwide and so the issue is high on the environmental agenda.  The Kyoto Protocol is an international environmental treaty within the UN Climate Change Framework Convention.

Alternative Energy essay: Renewable Sources ...the application of alternative energy sources to save the actual capacity of energy. This is done in a reasonable economic and environmentally friendly manner to face many global challenges related to the rising consumption of global resources. Alternative energy sources are not based on splitting of atoms or burning of fossil fuels.

Global Climate Change Essay The term climate change is usually referred to the process of global warming. The phrase has been once used by the National Academy of Sciences. Actually, a phrase is referred to the process of 'climate change'. A whole process is being referred to the process of 'global warming'. A whole process is very meaningful since it helps convey many new meanings. These meaning are expressed in the climate change. The most vivid and dangerous change are the rising temperatures.

United Nations and the Environment Essay The change of climate of the planet’s surface leads to the problem of greenhouse gases which “account for around 98% of the environmental pressure leading to climate change”[1]. They are: nitrous oxide (N2O), carbon dioxide (CO2) and methane (CH4). The activity of these gases leas to the Global Warming Effect, as all three of them are able to trap heat in the atmosphere. The danger lies in the Earth’s rising temperature, which makes the glaciers melt.

Pacific Northwest Forest Industry essay The importance of the Pacific Northwest ecosystem according to William Dietrich has been reduced which literally lead to the crisis of the ecosystem. The threat of disappearance of separate elements of the ecosystem is shown as the result the “deforestation”. Nowadays, tradition logging is suffering as the result “not only of deforestation but of automation, globalization and new scientific information about ecosystem importance”.

Essay on panda bears extinction Pandas are among the most seriously endangered species alive today. Until recently, Giant Pandas were disappearing at an alarming rate. As human populations expand, bamboo forests, the Giant Panda's natural habitat shrinks and they have nothing to eat. Combined with logging and the natural dying out of bamboo forests, pandas are forced to seek new areas of bamboo, but many of them fail to do it and end up dying of starvation instead.