Not exact matches
In her first major environmental proposal, Nixon called on New York State to commit to 100 percent
renewable energy sources by 2050 — a benchmark that has been something of a Holy Grail for activists concerned about the warming of the planet
as a result of the
burning of fossil fuels.
Previously, researchers have produced hydrogen gas in microbial - powered, batterylike fuel cells, but only when they supplemented the
energy produced by the bacteria with electrical
energy from external
sources — such
as that obtained from
renewable sources or
burning fossil fuels, says Bruce Logan, an environmental engineer at Pennsylvania State University, University Park.
Renewable energy sources, such
as the sun and wind, advances in technology to capture and store the carbon created by
burning coal, and even the harvesting of uranium's
energy will all likely be required.
With more money for development of novel designs and public financial support for construction — perhaps
as part of a clean
energy portfolio standard that lumps in all low - carbon
energy sources, not just
renewables or a carbon tax — nuclear could be one of the pillars of a three - pronged approach to cutting greenhouse gas emissions: using less
energy to do more (or
energy efficiency), low - carbon power, and electric cars (
as long
as they are charged with electricity from clean
sources, not coal
burning).
It stresses the use of wood
as a
renewable energy source and
as a raw material, pointing out that wood products store carbon for their entire lifetime, until they decay or are
burned.
China is heavily reliant on coal
burning thermal power plants, but reportedly has set a generating target of 20 million kilowatts from
renewable energy sources such
as hydropower, solar power and wind power by 2020.
The plan would have helped the nation move away from
burning coal and toward «cleaner
sources, like [natural] gas, and even really clean
sources, like
renewable energy, such
as wind and solar,» Kimmell said.
In December last year, the Government outlined a multi-million pound Government scheme to fund schools to install
renewable energy sources such
as wood -
burning boilers, wind turbines and solar panels to cut carbon emissions.
He concluded that
as renewable energy sources have low
energy density, more fossil - fuel such
as natural gas should be
burned for power generation, hence more pollutants emitted.
short answer A bad idea, since (i) they produce CO2 (partly responsible for the rise in global warming), (ii) there is a limited amount of fossil fuel from which we make valuable materials such
as lubricants and plastics, (iii) fossil fuel resources are finite, so
burning them means we are consuming a resource we can never replace, and (iv) we can actually build new industries and create many new jobs developing
renewable sources of
energy instead of
burning fossil fuels.
Researchers at the University of Northern Iowa's Tallgrass Prairie Center (TPC) are looking at ways to use the state's mixed prairie plantings
as a
source of
renewable energy —
as biomass to produce ethanol or to
burn for electricity.