What is the source of all energy in an ecosystem

Nearly everything eats sunshine or eats something else that ate sunshine. The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producer

What is the source of all energy in an ecosystem

Nearly everything eats sunshine  or eats something else that ate sunshine. The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.

Food is sunshine stored in chemical form. Organisms use the stored energy in food to fuel all living processes. Food is organic molecules that serve as fuel and building material for all organisms. The breakdown of food molecules enables cells to store energy and to carry out the many functions of the cell and therefore the entire organism.

For resources in addition to those featured below, see Lesson 2.4Energy and Carbon.Lesson Take Away:

Energy is essential to life and all living organisms. The sun, directly or indirectly, is the source of all the energy available on Earth.Last Updated: December 20, 2018

Carbon and Climate Change in 90 Secondsby Sarah-Mae Nelson, MS, CIG/CIT, September 09 2013Energy powers all living systems and this NASA video shows how energy flows from the Sun, to the Earth,through humans, and through the technology humans use. Video length: 2:21 min.

Carbon and Climate Change in 90 Secondsby Sarah-Mae Nelson, MS, CIG/CIT, September 09 2013

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uvfXYM6J4m4Video of uvfXYM6J4m4Topics:Carbon Emissions & Fossil FuelsEnergy EfficiencyClimate & Ocean Science

Energy powers all living systems and this NASA video shows how energy flows from the Sun, to the Earth,through humans, and through the technology humans use.

Video length: 2:21 min.Was this post useful?:0

The Ocean's Green Machinesby Sarah-Mae Nelson, MS, CIG/CIT, September 09 2013Phytoplankton, a tiny marine plant, makes life on Earth possible. It forms the basis of the marine food web and regulates carbon in the atmosphere. Warming waters have consequences for phytoplankton and for the planet. Video length: 5:35 min.

The Ocean's Green Machinesby Sarah-Mae Nelson, MS, CIG/CIT, September 09 2013

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zd_4jYN0tvYVideo of zd_4jYN0tvYTopics:Ocean CurrentsCarbon Emissions & Fossil FuelsEnergy Efficiency

Phytoplankton, a tiny marine plant, makes life on Earth possible. It forms the basis of the marine food web and regulates carbon in the atmosphere. Warming waters have consequences for phytoplankton and for the planet.

Video length: 5:35 min.Was this post useful?:0

Striking a Solar Balanceby Sarah-Mae Nelson, MS, CIG/CIT, September 09 2013Earth's climate depends on energy from the Sun. The Total Irradiance Monitor on NASA's Glory mission will continue measuring solar irradiance, which will contribute to the long-term climate record. Video length: 3:36 min.

Striking a Solar Balanceby Sarah-Mae Nelson, MS, CIG/CIT, September 09 2013

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PrFm4QEa1WIVideo of PrFm4QEa1WITopics:Alternative EnergyCarbon Emissions & Fossil FuelsEnergy EfficiencyClimate & Ocean Science

Earth's climate depends on energy from the Sun. The Total Irradiance Monitor on NASA's Glory mission will continue measuring solar irradiance, which will contribute to the long-term climate record.

Video length: 3:36 min.Was this post useful?:0

Energy IssuesFoundations of Life: Switch Energy Projectby Sarah-Mae Nelson, MS, CIG/CIT, September 10 2013Energy drives the modern world and underpins every other issue. We choose our energy based on four attributes: affordable, available, reliable and clean. But defining clean is complicated. All energies have environmental impacts that need to be...

Energy IssuesFoundations of Life: Switch Energy Projectby Sarah-Mae Nelson, MS, CIG/CIT, September 10 2013

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40102636Video of 40102636Topics:Carbon Emissions & Fossil FuelsClimate & Ocean ScienceEnergy Efficiency

Energy drives the modern world and underpins every other issue.

We choose our energy based on four attributes: affordable, available, reliable and clean. But defining clean is complicated. All energies have environmental impacts that need to be managed effectively and affordably.Even so, the biggest challenge of energy is scalethe enormous amount of energy we demand.And the only way to counter scale, is with efficiency.

© Switch Energy Project

Video length: 2:12 min.Was this post useful?:4

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