Green Jobs in Tidal and Marine-Based Energy
Tidal and marine-based energy may not be the first words off your tongue when asked about renewable energy. Even so, job-seekers should consider it in any green career transition plan. These facets of renewable energy provide an environmentally sustainable alternative that could be a huge player in the green economy of the future. In an eco-conscious job search, tidal and marine-based energy could be a gold mine of opportunity.
After all, the oceans, which cover 70 percent of the earth’s surface, are constantly in motion due to lunar phases, gravity, tides, wind, and solar heating of the water’s surface. That movement provides a promising source of renewable, non-polluting electricity. Energy can be pulled from oceans via tidal energy, wave power, ocean current energy, or ocean thermocline energy (OTEC).
The good news about tidal power is that the technology required to capture power from the ocean is well developed and is very similar to technology used by hydroelectric plants for the last 120 years. The more challenging part of the story is the construction itself. Oceanic projects require a large investment of time and money, with construction lasting as long as ten years. Nevertheless, companies, utilities, and governments are actively working on projects around the world. The location of the early adopters depends on the geological phenomenon needed to leverage each type of technology:
Tidal energy: Operating a tidal energy operation requires a difference of at least 7 meters between the low and the high tide. Several tidal power plants exist now on the northern coast of France, in the Bay of Fundy in Nova Scotia, near Murmansk in Russia, and several locations in China. Research studies point to several other promising locations, including Alaska, British Columbia, Washington, Maine, the Severn River in England, and the White Sea of Russia. If we could harness tidal power around the world, we could generate 64,000 MW of power.
Wave power: Wave power plants are most likely to be sited on western coastlines that experience fast series of pounding waves. In keeping with this fact, WaveGen built the first commercial-scale wave power plant in the Isle of Islay, Scotland. Other projects are underway around the globe in countries such as Portugal, Norway, the U.S., China, Japan, Australia, and India. The U.S. alone could produce 23 GW from wave power.
Ocean current energy: To capture energy from ocean currents, the current must be moving at 5 knots or more. Various areas around the world including the UK, Italy, Japan, the Philippines, the Florida Current, and the Gulf Stream are well suited for this industry. In 2000, Blue Energy, Inc., estimated the power from this energy source to exceed 450 GW.
Ocean thermocline energy (OTEC): This technology is typically most effective near the equator where the warm shallow waters around an island drop off dramatically to deep waters with cold temperatures. Although studied by scientists since the late 1800s, only a few plants have been constructed — off Hawaii, India, and Guam.
Although some ocean power technologies are more mature than others, the industry as a whole is still in early stages of development. While experts say that the ocean energy industry is where wind power was in the early 1980s (when many technical designs were in play and no clear indication of the ultimate direction of the industry was apparent), the ocean energy industry has a couple advantages over the early years of the wind industry. The cost per unit of energy is already competitive with wind, lower than solar, and expected to drop farther. In addition, the development of industry standards is progressing more quickly than in wind, shortening the time between product prototype and commercialization.
Here are some jobs that could be in demand in tidal and marine-based energy:
Mechanical engineers, control and instrumentation engineers, sustainable energy engineers, structural engineers, and geotechnical engineers build and maintain the power generation systems.
Oceanographer engineers, rivers and coastal engineers, marine ecologists, and hydraulic modelers are needed to identify the best locations for power technologies and to work with engineers on operations and maintenance issues.
Electrical designers, electric design managers, and software engineers manage the electricity generated by the power generation systems.
As new systems go online, workers must install, service, and maintain equipment. Diving and working underwater is likely a desired skill.

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Biomass power; biopower
Biopower creates electric power from organic material such as manure, crops, wood resources and processing residue, food and yard waste, and municipal bio waste. Biomass can be converted to electricity, biofuels, space heating/cooling, or process heat.

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Cleantech; clean energy
Products, processes, and services that depend on renewable energy sources, minimize waste, and use natural resources judiciously.

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Climatologist
Scientist who studies long-term climate variations by looking at past weather data and using complex computer models and datasets to project how various factors such as greenhouse gases, volcanic activity, and solar flares impact our climate.

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Concentrating solar power CSP
Typically used in utility-scale projects, CSP uses a large array of mirrors to focus sunlight onto receivers. As the receivers collect the solar energy, they convert it to heat. Several designs are in use, including a mirrored dish, a power tower with mirrors encircling the tower, and linear trough systems.

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Cradle to cradle model
Production life cycle wherein materials from outdated models become an input to the production process.

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Diverted waste
Waste that doesn’t make its way to landfill because it is reused, recycled, or composted.

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Ecohydrology
Branch of hydrology industry that tackles how organisms interact with water at various stages of the water cycle.

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Ecolabeling
A labeling system to assess the life cycle impact of a product or service.

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Ecological design
Section of ecology that calls upon designers to bring ecological principles into the design projects to conserve energy, reduce toxins, and minimize waste.

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Ecological engineering
Industry that integrates the two fields of ecology and engineering to design, monitor, restore, and construct aquatic and land-based ecosystems in a way that benefits humans and the environment. Applications include creating ecosystems to handle storm water in urban areas or restore community forests or wetland areas.

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Ecotourism
According to the Mohonk Agreement of 2000, ecotourism is tourism that seeks to minimize ecological and sociocultural impacts while providing economic benefits to local communities and host countries.

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Electronic waste; e-waste
Discarded TVs, computers, monitors, printers, scanners, mice, keyboards, and cellphones.

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Environmental education
A process aimed at developing a world population that is aware of and concerned about the total environment and its associated problems, and which has the knowledge, attitudes, motivations, commitments, and skills to work individually and collectively toward solutions of current problems and the prevention of new ones.

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Environmental geography
Branch of geography (the study of earth, including human geography, which refers to the built environment, and physical geography, which consists of the natural environment) which looks at the interactions between humans and the environment in order to understand how the environment is created, managed, and used.

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Environmental meteorologist
Scientist that uses his or her expertise to study and evaluate environmental problems, including climate change, air contaminants, greenhouse gas emissions, fresh water shortages, droughts, and ozone depletion. Environmental meteorologists may be called upon to conduct environmental assessments and prepare environmental impact reports on their findings.

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Environmental science
An interdisciplinary study of the natural environment from a systems point of view.

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Forestry
Broad term used to refer to the management of natural forests, industrial forests, and the other natural resources found within forests.

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Geodesy
Branch of applied mathematics that specializes in measuring the Earth to determine its shape and size.

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Geology
The study of the physical properties of the solid and liquid materials that make up the Earth, their history, and the processes that create and change them.

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Geophysics
The study of the entire Earth as a whole using quantitative instruments and the principles of physics.

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Geosciences; earth sciences
An umbrella term for all the sciences that are devoted to studying the planet. Typically divided into four fields: geography, geology, geophysics, geodesy.

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Geothermal energy
Clean, reliable, renewable resource that taps the heat from the core of the Earth to generate electricity and provide heating and cooling applications. Geothermal energy is divided into three categories: geothermal electricity production, geothermal direct use, geothermal heat pumps.

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Glaciology
Branch of hydrology that focuses on glaciers.

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Green
Generally used as shorthand for something that improves the state of the environment in a discernable way. Can refer to a product, industry, company, job, process, or organization that conserves energy and resources, generates clean, renewable energy, minimizes waste, eliminates hazardous materials, or restores the environment and biodiversity.

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Green economy
The industries that are producing greener products, using cleaner processes, and offering more sustainable services in an effort to move us toward a new standard.

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green marketing; environmental marketing; ecological marketing
Marketing practices that emphasize a company’s corporate social responsibility initiative; the marketing story may also include a description of the social impact of the product on the communities of the suppliers, producers, and end users.

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Green-washing
Marketing practices that lead the consumer to believe that a product or service is beneficial to the planet even though it’s not.

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Holistic land management
Managing their land holistically or sustainably, using a triple bottom line approach that balances financial results, environmental impact, and community impact.

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Hydrogeology
Branch of hydrology that looks at the movement and distribution of groundwater.

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Hydrography
Branch of hydrology that researches the distribution of water.

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Hydrology
Scientific field that assesses the quantity and quality of water by studying the movement of water, the quality of water, and how water is distributed over time and space throughout the Earth. The study includes the biological, chemical, and physical properties of water and how these properties interact with the environment and living organisms during the water cycle.

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Hydrometeorology
Branch of hydrology that examines water as it moves from bodies of water to the atmosphere.

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Industrial ecology
Branch of ecology that incorporates ecological principles into the technological world of manufacturing. The goal within this sub-discipline is to create industrial systems that function much like a natural ecosystem.

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Limnology
Branch of hydrology that tracks inland waters.

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Ocean current energy
Source of energy that takes advantage of strong currents that occur naturally between islands, near headlands, and at the entrances of bays and harbors. Underwater turbines capture the energy created by currents that have a velocity of 5 or more knots.

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Ocean thermocline energy OTEC
Method of energy creation that relies on temperature differences between the warm water on the surface of the ocean and the cold water at deeper depths.

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Rangelands
Unimproved lands with a high proportion of native vegetation that may be marshy, shrubby, grassy, or arid desert.

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Renewable energy
Energy that is derived from resources that are readily available all over the world. The crucial feature of renewable energy is that by tapping into its power, you don’t deplete the resource, nor do you inflict damage on the environment or the planet as a whole.

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Reverse logistics; aftermarket logistics; retrologistics; aftermarket supply chain
All post-sale logistics, from the support call center and field service to refurbishing, recycling, and reusing materials in a product at the end of its life cycle.

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Smart grid
The industry that focuses on how electricity and information are handled from power generation, transmission, and distribution to energy storage and real-time energy management technology are successfully combined, including traditional and new energy sources, within a reliable, secure, efficient infrastructure.

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Supply/distribution logistics; supply chain
The management of a vast network of suppliers spread throughout the world through sophisticated software that allows all the players to understand the supply and demand needs and status.

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Surface hydrology
Branch of hydrology that studies how water moves on the surface of the earth.

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Sustainable
Any sort of practice that does not take more from a source than it can regenerate in a reasonable amount of time. One way to become sustainable is the triple bottom line approach — attending to the economic and social and environmental impacts of our choices.

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Sustainable manufacturing
According to the U.S. Department of Commerce, the creation of manufactured products that use processes that are non-polluting, conserve energy and natural resources, and are economically sound and safe for employees, communities, and consumers. The goods may have green uses, such as solar panels or green building supplies, or they may be traditional goods produced sustainably, such as toothpaste and carpet tiles.

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Tidal energy
Energy captured and converted to electricity as tidal waters move into and out of a bay.

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Waste-to-energy WTE
Renewable energy model that uses facilities that burn organic and manufactured waste in carefully designed boilers with modern pollution control equipment to scrub the emissions from the burn and maintain precise heat conditions to ensure that all waste matter is combusted completely.

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Wave power
Energy captured from the change in height and speed of ocean waves.

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Wind energy
Energy captured from the wind created as the sun heats different parts of the earth at different rates, and hot air rises and cooler air is drawn in to replace the warmer rising air.