Ocean

The latest articles related to Ocean

Exergy – Applications

Applying equation (1) to a subsystem yields: : mbox{If } frac {dB}{dt} begin{cases} >0, & frac {dB}{dt}=mbox{ maximum power generated} \ Adapted from the Wikipedia article Exergy, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki

World energy resources and consumption – Consumption

Primary energy The United States Energy Information Administration regularly publishes a report on world consumption for most types of primary energy resources. Fossil fuels The twentieth century saw a rapid twentyfold increase in the use of fossil fuels. Between 1980 and 2006, the worldwide annual growth rate was 2%. According to the US Energy Information [...]

Climate change mitigation – Methods and means

] At the core of most proposals is the reduction of greenhouse gas emissions through reducing energy waste and switching to cleaner energy sources. Frequently discussed energy conservation methods include increasing the fuel efficiency of vehicles (often through hybrid, plug-in hybrid, and electric cars and improving conventional automobiles), individual-lifestyle changes and changing business practices. Newly [...]

Environmental health – Concerns

Environmental

Environmental health addresses all human-health-related aspects of both the natural environment and the built environment. Environmental health concerns include: * Air quality, including both ambient outdoor air and indoor air quality, which also comprises concerns about environmental tobacco smoke. * Body art safety, including tattooing, body piercing and permanent cosmetics. * Climate change and its [...]

Marine energy – Introduction

Wave Power

Ocean energy, also referred to as marine renewable energy, marine power, marine energy, and ocean power, refers to the energy carried by ocean waves and tides. The movement of water in the world’s oceans creates a vast store of kinetic energy, or energy in motion. This energy can be harnessed to create electricity to power [...]

Regional effects of global warming – Coastal regions

Global Warming

Global sea level is currently rising due to the thermal expansion of water in the oceans and the addition of water from ice sheets. Because of this, there low-lying coastal areas, many of which are heavily populated, are at risk of flooding. Areas threatened by current sea level rise include Tuvalu and the Maldives. Regions [...]

Natural hazard – Climatic and atmospheric hazards

Blizzard A blizzard is a severe winter storm icy and windy conditions characterized by low temperatures, strong winds, and heavy snow. Drought Drought is defined as an acute shortage of water and crop failure that results when the average rainfall is very less than the normal. A drought is an abnormally dry period when there [...]

Glossary of climate change – A

Climate Change

* Additionality – in the context of a carbon offset project, the additionality is the reduction in greenhouse gas emissions that is in addition to what would have resulted in the absence of the project. * Albedo – An index of the “reflectiveness” – a way of quantifying how much radiation is reflected back, as [...]

Renewable energy – Mainstream forms of renewable energy

Renewable Energy

Wind power Airflows can be used to run wind turbines. Modern wind turbines range from around 600& kW to 5 MW of rated power, although turbines with rated output of 1.5–3 MW have become the most common for commercial use; the power output of a turbine is a function of the cube of the wind [...]

Tidal power – Dynamic tidal power

Tidal Power

Dynamic Tidal Power (DTP) is a new concept involving the construction of very long dams of about 30 to 50& km, extending from the coast straight out into the ocean, with a perpendicular barrier at the far end, forming a large ‘T’ shape. This long T-dam interferes with coast-parallel oscillating tidal waves which run along [...]

Sustainability – Environmental dimension

Sustainability

Healthy ecosystems provide vital goods and services to humans and other organisms. There are two major ways of reducing negative human impact and enhancing ecosystem services: :a) Environmental management. This direct approach is based largely on information gained from earth science, environmental science and conservation biology. However, this is management at the end of a [...]

Solar energy – Energy from the Sun

Solar Energy

Adapted from the Wikipedia article Solar energy, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki

Environmental policy of the Harper government – Clean energy technology funding

Clean Energy Technology

On December 20, 2006, Ambrose and Agriculture Minister Chuck Strahl announced $345 million of funding and other measures to promote the use of biodiesel and ethanol in policies related to the Clean Air Act. Among that, diesel fuel, regular fuel and heating oil would require a small amount of cleaner energy by 2012. Measures also [...]

Sources of Renewable Energy are All Around Us

By: Barret HudsonSources for renewable energy are all around us. When you say renewable energy the first things that always come to mind are wind and solar power. These two technologies have been the primary focus for discussions about renewable energy for quite some time. Complimented by geothermal energy and biomass production, these four get [...]

Ocean Waves As an Alternative Energy Solution

How can we harness the power of waves to produce clean energy? How affordable and plausible is it to generate electricity from the ocean waves?

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