Search results
Results from the WOW.Com Content Network
Ecopoetry is any poetry with a strong ecological or environmental emphasis or message. Many poets and poems in the past have expressed ecological concerns, but only recently has there been an established term to describe them; there is now, in English-speaking poetry, a recognisable subgenre of poetry, termed Ecopoetry, which can, on occasions, form a major strand of a writer's career ...
This is a list of countries and dependencies by electricity generation from renewable sources each year.. Renewables accounted for 28% of electric generation in 2021, consisting of hydro (55%), wind (23%), biomass (13%), solar (7%) and geothermal (1%).
The carbon cycle of a terrestrial ecosystem. [6] Beginning with photosynthesis, water (blue) and carbon dioxide (white) from the air are taken in with solar energy (yellow), and are converted into plant energy (green). [7] 100×10 15 grams of carbon/year fixed by photosynthetic organisms, which is equivalent to 4×10 18 kJ/yr = 4×10 21 J/yr of ...
Bioenergy feedstocks typically require significant amounts of energy to harvest, dry, and transport; the energy usage for these processes may emit greenhouse gases. In some cases, the impacts of land-use change, cultivation, and processing can result in higher overall carbon emissions for bioenergy compared to using fossil fuels. [30] [32]
Bioliquids have several key advantages over other sources of renewable energy: [4] Bioliquids have a high energy density; The technology is well established, having been used for many years; Can be used on demand, reacting quickly to changes in demand for power; Can help reduce dependency on foreign oil. Reduces the green house gas emissions.
In 2010, global energy intensity was 5.6 megajoules (1.6 kWh) per US dollar of GDP. [42] United Nations goals call for energy intensity to decrease by 2.6% each year between 2010 and 2030. [43] In recent years this target has not been met. For instance, between 2017 and 2018, energy intensity decreased by only 1.1%. [43]
Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). About 16% of global final energy consumption comes from renewables, with 10% coming from traditional biomass , which is mainly used for heating , and 3.4% from hydroelectricity .
In the context of energy production, biomass is matter from recently living (but now dead) organisms which is used for bioenergy production. Examples include wood, wood residues, energy crops, agricultural residues including straw, and organic waste from industry and households. [1] Wood and wood residues is the largest biomass energy source today.