Greenhouse gas
emissions from fossil fuels not only pollute our air directly; they also drive climate change, which can indirectly affect the quality of our air.
Not exact matches
Divesting
from fossil fuels has long been a goal of many environmental advocates, who say the state shouldn't invest in
fossil fuel companies when it's working to reduce its carbon
emissions.
Carbon capture is required To ensure CCS development by 2050, EPA needs to regulate
emissions from all
fossil fuels —
not just coal — today, Allen said.
Like
fossil fuel development or
not, the Kemper plant is at the center of U.S. EPA's plans to regulate carbon dioxide
from new power plants and at the center of global
emissions, considering that «low - rank» coals like Mississippi lignite constitute half the world's coal supply.
Whilst methane - burning is cleaner that other
fossil fuels, any methane
not burnt and released in the
emissions from the engine has a much greater warming effect than oil - based
fuel.
A push for oil sands oversight and new climate targets Harper has been a target of environmentalists for most of his tenure — they say he turned Canada into an international pariah by
not regulating greenhouse gases
from oil and gas, cutting clean energy and climate science programs, withdrawing
from the Kyoto Protocol, «muzzling» scientists, pressing aggressively on Keystone XL and
fossil fuels, and allowing the country's
emissions trajectory to spiral away
from targets under the Copenhagen Accord.
If
not, such so - called offsets aren't displacing the
emissions from fossil fuel burning, they're simply adding more electricity to the overall system.
«This means that the mere existence of storage technology, which benefits both renewable and
fossil fuel power generation, doesn't necessarily lead to lower carbon
emissions from electricity generation.»
Otherwise, the effort to reduce greenhouse gas
emissions from fossil fuels won't make much difference,» Artaxo said.
Yet if greenhouse - gas
emissions from burning
fossil fuels are
not reduced at all, in a business - as - usual scenario, water management will clearly
not suffice to outweigh the negative climate effects.
We can
not look at one part in isolation because both
emissions often come
from the same source, namely
fossil fuels, say the researchers.
«When it comes to life cycle greenhouse gas
emissions, wind and solar energy provide a much better greenhouse gas balance than
fossil - based low carbon technologies, because they do
not require additional energy for the production and transport of
fuels, and the technologies themselves can be produced to a large extend with decarbonized electricity,» states Edgar Hertwich, an industrial ecologist
from Yale University who co-authored the study.
The New York Times and other outlets reported that Soon has received extensive financial support over the past decade
from fossil fuel companies and others opposed to government regulation of greenhouse gas
emissions — but has
not always disclosed those financial links in his technical publications.
«Although these results are «good news» in the sense that the underlying physiology of plants is
not going to make the warming of the planet radically worse, the problem we have created in the first place with our greenhouse gas
emissions from fossil fuel burning still exists,» he says.
The jist of this is that we must
NOT suddenly switch off carbon / sulphur producing industries over the planet but instead we must first dramatically reduce CO2
emissions from every conceivable source, then gradually tackle coal /
fossil fuel sources to smoothly remove the soot
from the air to prevent a sudden leap in average global temps which if it is indeed 2.75 C as the UNEP predicts will permanently destroy the climates ability to regulate itself and lead to catastrophic changes on the land and sea.
«We won't see a significant shift away
from fossil fuels in the energy industry until an honest price is imposed on carbon - dioxide
emissions.»
«CO2
emissions from fossil fuels and industry did
not really change
from 2014 to 2016,» says climate scientist Pierre Friedlingstein at the University of Exeter in England, and an author of the 2017 carbon budget report released by the Global Carbon Project in November.
Peters co-authored a paper published last year warning that staking the future only on negative
emissions technologies presents a «moral hazard» because they're unproven, there is a substantial risk that the technology can't be scaled up, and it may allow policymakers to think that weaning humanity away
from fossil fuels is
not urgent.
That's because if tropical deforestation stopped,
not only would those
emissions go away, but on top of that, forests would start stowing away a significant part of the carbon
from our
fossil fuel emissions.
My own feel for this is that if we do
not achieve global agreement and real action on deep cuts in
emissions over the next 10 years or so we will get locked into an inappropriate
fossil fuel infrastructure until at least mid-century, that will prevent us
from capturing CO2 effectively.
The rise in CO2
emissions due to the burning of
fossil fuels from 1880 through the 1940's was
not sufficient to have played a major role in the considerable global temperature rise that took place during that period — so if we want to presume that sea level rise is prompted by global temperature rise (along with concomitant melting of glaciers, etc.) then we can't really attribute very much of the rise in sea levels during that period to CO2.
It is
not surprising that the eco-pragmatists attract support
from conservatives who have doggedly resisted all measures to cut greenhouse gas
emissions, defended the interests of
fossil fuel corporations, and in some cases worked hard to trash climate science.
That's all fine, but this also means that the climate talks, which head to Durban, South Africa, next year, are
not the place to watch for the breakthroughs — social, financial or technological — that will be required if the world is serious about providing some 9 billion people mid-century with the suite of services that come with abundant energy (mobility, communication, illumination, desalinated water and more) while also greatly cutting
emissions from burning
fossil fuels, which still dominate the global energy mix.
[AR: I keep hearing, again and again, that China simply will
not budge
from its growth, coal, and
emissions trajectories without help — meaning money —
from countries, like the United States, that have built their own economies on
fossil fuels for a century or two.
A party
from which the loudest and most influencial voices either do
not attribute climate change to man's activities, deny there are any changes happening at all, and / or are unwilling to do anything that taxes
fossil fuel emissions.
What's in question is
not the effect per se, which is certainly real, but the issue of sensitivity, i.e., how sensitive is the environment to the greenhouse effect produced by carbon
from fossil fuel emissions?
The graph above,
from the Dutch report, shows clearly how relentless overall
emissions growth in countries climbing out of poverty (as electrification, manufacturing and mobility expand
fossil fuel demand) was
not blunted by the recession and is sending them and the rich world (which is getting ever more efficient and exporting manufacturing) toward some kind of carbon common ground.
Factor in the «carbon light» CO2
from coal seam gas projects in the East (and other LNG expansion in the north and west) and you're talking about Australia's
fossil fuel emission exports equating to TWO Saudi Arabias by 2020,
not one as I've been saying to many disbelieving ears.
Leif Knutsen 35 «To stop climate change, flat CO2
emissions aren't enough, say scientists» IMHO the movement of heat into the deep ocean with heat pipes as explained in the above references is also required and can produce as much zero
emissions energy as we currently derive
from fossil fuels.
But, as the Keeling Curve shows, these processes are
not capable of keeping up with
fossil fuel emissions from the electricity generation and transportation sectors.
Furthermore,
emissions estimates discussed here include only those
from fossil fuels burned within a country's borders, meaning that the tallies do
not account for international trade.
But he didn't mention the non-monetary costs, which include the enormous amount of energy required to heat the rock and resulting carbon dioxide
emissions if that energy comes
from fossil fuels.
IF carbon dioxide
emissions from fossil fuels only stayed in the atmosphere a few years, say five years, then there may
not be quite the urgency currently associated with anthropogenic global warming.
Even after decades of increasingly dire warnings, the US has still
not passed comprehensive federal legislation to combat global warming; Canada has abandoned past pledges in order to exploit its
emissions - heavy tar sands; China continues to depend on coal for its energy production; Indonesia's effort to stem widespread deforestation is facing stiff resistance
from industry; Europe is mulling pulling back on its more ambitious cuts if other nations do
not join it; northern nations are scrambling to exploit the melting Arctic for untapped oil and gas reserves; and
fossil fuels continue to be subsidized worldwide to the tune of $ 400 billion.
Such change has been predicated for the Arctic, and scientists have repeatedly warned of yet further shifts if the world does
not act to sharply reduce greenhouse gas
emissions from fossil fuel use.
Natural variability does
not go away simply because greenhouse gas
emissions from fossil fuels are now the main driving force.
As I've explained, there are in effect many buyers and many sellers in CO2E pricing, even if there is a government - enforced standard of delivering equal share equitably to all sellers per capita as there are different carbon intensities of essentially the same energy: electricity need
not be produced
from fossil fuels, and where it is, the
fossil fuels may be less carbon intensive natural gas, or enriched through geothermal or solar hydrotreating to become less carbon intensive, or the CO2
emissions can be directly sequestered or used in coproduction to reduce net influx of CO2.
As a matter of substance, you can
not meet the climate challenge by focusing only on developed countries when developing countries already account for around 55 % of global
emissions from fossil fuels and will account for 65 % by 2030.
Solar and wind are too diffuse and
not reliable enough to power factories and cities, and thus can
not lift people out of poverty nor reduce
emissions from fossil fuel - powered electrical systems more than only modestly.
These prices do
not include the cost of a backup for wind and solar require, or the costs in terms of human health or rising GHG
emissions from fossil fuels.
The production of food and fibre; the urbanization of once agricultural or forested lands; and the sequestration of that portion of carbon
emissions from fossil fuels that is
not already absorbed by oceans or by long - term sequestration strategies in agriculture or forestry, all constitute competing or non-overlapping uses of ecosystems.
This is higher than ANY of the IPCC projections and is the level expected by combusting all the remaining
fossil fuels on our planet, so it is «virtually certain» (in IPCC terminology) that this level will
NOT be reached
from human CO2
emissions by 2100.
Cassandra Kubes,
from the American Council for an Energy Efficient Economy (ACEEE), spoke of the potential to save many lives by cleaning the air —
not by total transformation of the energy supply, but simply by choosing the latest and most efficient technologies to reduce polluted
fossil fuel emissions.
Addressing the atmospheric concentrations of GHGs, Saudi Arabia cautioned against «giving policy makers the message that CO2 drives global warming» and further highlighted that
not all CO2
emissions result
from fossil fuel combustion.
However, this won't add up to much unless
emissions from burning
fossil fuels are cut fast and drastically.
Wiki:» The data only considers carbon dioxide
emissions from the burning of
fossil fuels and cement manufacture, but
not emissions from land use, land - use change and forestry.»
The vulnerability of an investment in
fossil fuel reserves or hardware to competition
from renewable energy and decarbonization doesn't just depend on the carbon intensity of the
fuel type — its
emissions per equivalent barrel or BTU — but also on its functions and unique attributes.
Figure 2: Data show that CO2 removed
from the atmosphere by plant growth does
not compensate for
fossil fuel emissions.
This wouldn't make sense either,
not only because scientists keep track of volcanic and oceanic
emissions of CO2 and know that they are small compared to anthropogenic
emissions, but also because CO2
from fossil fuels has its own fingerprints.
I never use human land use changes in my calculations, as these are by far
not accurate, compared to
emissions from fossil fuel use, even if it is certain that land use changes add to the
emissions.