Another graphic, circulated on Twitter by German broadcaster Deutsch Welle, shows how different cumulative, historic emissions look from the current scenario: China three years ago surpassed the United States
as the global greenhouse gas emissions leader.
Basic climate science suggests that,
as global greenhouse gas emissions increase, so too will the quantity and severity of natural disasters.
Not exact matches
The United States, under former President Barack Obama, had pledged
as part of the Paris accord to cut U.S.
greenhouse gas emissions by
as much
as 28 percent from 2005 levels by 2025 to help slow
global warming.
EPA Administrator Scott Pruitt did not confirm whether the United States would remain in the
global climate change pact, under which nearly all countries agreed in 2015 to halt or curb their
greenhouse gas emissions, even
as the world's biggest emitter China reaffirmed its commitment to the agreement.
In December 2015, the world agreed to the Paris Accord; to slash
greenhouse gas emissions to hold
global average temperature increase to 1.5 degrees C (over what it was before the Industrial Revolution), and, if we miss that target, to
as far below 2 degrees
as possible.
There is a direct connection between the current changes in the world's atmosphere and the rise in average temperature; this is known
as global warming or the «
greenhouse effect».
``... a number of scientific studies indicate that most
global warming... is due to the great concentration of
greenhouse gases released mainly
as a result of human activity... these gases do not allow the warmth of the sun's rays reflected by the earth to be dispersed in space.
... A number of scientific studies indicate that most
global warming in recent decades is due to the great concentration of
greenhouse gases (carbon dioxide, methane, nitrogen oxides and others) released mainly
as a result of human activity... Doomsday predictions can no longer be met with irony or disdain.
Other environmental impacts such
as greenhouse gas emissions or land use should be taken into consideration, when possible, in order to address the environmental impacts of the
global dairy sector in a holistic manner.
Eating less meat is of course a vital way to help prevent the cruelty to and suffering of animals and benefits the environment: livestock production could be responsible for
as much
as 51 % of
global greenhouse gas emissions.»
As well as being responsible for a huge chunk of global greenhouse gas emissions, meat productionrequires increasingly unsustainable levels of precious resources — land, water and energy — and is a major contributor towards global environmental degradatio
As well
as being responsible for a huge chunk of global greenhouse gas emissions, meat productionrequires increasingly unsustainable levels of precious resources — land, water and energy — and is a major contributor towards global environmental degradatio
as being responsible for a huge chunk of
global greenhouse gas emissions, meat productionrequires increasingly unsustainable levels of precious resources — land, water and energy — and is a major contributor towards
global environmental degradation.
This system allows us to report energy and water consumption,
greenhouse gas emissions and waste generation at a
global and site level,
as an absolute figure or per unit of production.
WHEREAS, in furtherance of the united effort to address the effects of climate change, in 2010 the 16th Session of the Conference of the Parties to the UNFCC met in Cancun, Mexico and recognized that deep cuts in
global greenhouse gas emissions were required, with a goal of reducing
global greenhouse gas emissions so
as to hold the increase in
global average temperature below 2 °C above pre-industrial levels;
Climate change has added new impetus to forest conservation efforts
as we increasingly appreciate how efficiently forests sequester carbon dioxide, a
greenhouse gas that contributes to
global warming.
As global temperatures rise and permafrost thaws, the previously frozen organic material begins to decay and releases
greenhouse gases like methane and carbon dioxide.
As a result, more of human emissions would remain in the atmosphere, increasing the
greenhouse effect that contributes to
global warming and alters Earth's climate.
The groups said the United States should make the conservation, restoration and sustainable management of forests in developing nations a central goal of federal climate legislation,
as tropical deforestation and other land - use decisions account for about 20 percent of
global greenhouse gas emissions.
The surveys asked 84,086 respondents to gauge the level of threat they attributed to climate change (some of the surveys used different words to describe the phenomenon, such
as global warming and the
greenhouse effect).
In reality,
as well
as contributing to
global emissions thanks to its exports, Norway's own
greenhouse gas emissions are higher than they were in 1990.
«Tropical forests act
as a sink that reduces
global greenhouse gases.
It has been suggested that climate engineering could be used to postpone cuts to
greenhouse gas emissions while still achieving the objectives of limiting
global warming to under 2 degrees,
as set in the Paris Climate Agreement.
But that still leaves a load of pollution: China this year surpassed the U.S.
as the world's largest emitter of
greenhouse gases behind
global warming.
CO2 emissions rise
as natural sinks slow, but how can scientists precisely track this
greenhouse gas, especially in advance of a potential
global treaty to reduce its emissions?
It's controversial, but some scientists see it
as one option to limit
global warming if nations fail to stem the output of
greenhouse gases before a tipping point is reached.
Under Obama the CEQ is moving forward with plans formulated during his predecessor's tenure for a U.S. policy on oceans — from newly protected areas to reconciling competing authorities and laws — along with continuing the Major Economies Forum on Energy and Climate
as a way to address
global greenhouse gas emissions.
Given that methane has 20 times the impact of CO2
as a
greenhouse gas, such a release could have accelerated
global warming at that time.
A crucial distinction in the
global - warming balance sheet — and another stumbling block for beginners starting to count carbons — is that researchers treat fuel from current plant growth
as causing zero net
greenhouse - gas emissions.
Scientists know that the clouds can act
as a sunshield, cooling parts of the globe and offsetting the
global warming caused by the
greenhouse effect (see «Not warming, but cooling», New Scientist, 9 July 1994).
Almost 200 countries on Saturday kept alive hopes for a
global deal in 2015 to fight climate change after overcoming disputes on
greenhouse gas emissions cuts and aid for poor nations at a meeting widely criticised
as lacking urgency.
«There is the potential for the U.S. and other countries to continue to rely on coal
as a source of energy while at the same time protecting the climate from the massive
greenhouse gas emissions associated with coal,» says Steve Caldwell, coordinator for regional climate change policy at the Pew Center on
Global Climate Change, an Arlington, Va., think tank.
In its first case confronting
global warming, the U.S. Supreme Court ruled in April that
greenhouse gases such
as carbon dioxide are air pollutants that the Environmental Protection Agency can regulate.
The researchers [3] quantified China's current contribution to
global «radiative forcing» (the imbalance, of human origin, of our planet's radiation budget), by differentiating between the contributions of long - life
greenhouse gases, the ozone and its precursors,
as well
as aerosols.
When the world's governments gather in December 2009 in Copenhagen to negotiate a treaty to restrain
global greenhouse gas emissions, the science on which they base their decision could be
as much
as four years out of date.
A new review sums up options for increasing
global carbon sequestration by flora and speculates that genetically engineering crops and trees could enhance the process, trapping gigatons of the
greenhouse gas
as well
as increasing bioenergy production
Were that to happen, emissions would be
as high
as the entire transportation sector, which takes up 14 % of
global greenhouse emissions, currently dominated by pollution from cars and trucks.
While a strong El Niño provided a boost to
global temperatures last year, the main driver of the planet's temperature surge,
as well
as other climate trends, is the warming caused by the buildup of
greenhouse gases in the atmosphere.
Warming of arctic soils and thawing of permafrost thus can have substantial consequences for the
global climate,
as the large C and N stores could be released to the atmosphere
as the
greenhouse gases carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O).
«Many impacts respond directly to changes in
global temperature, regardless of the sensitivity of the planet to human emissions of CO2 and other
greenhouse gases,» says geoscientist Katharine Hayhoe of Texas Tech University in Lubbock, a co-author of the report, excluding effects such
as ocean acidification and CO2
as a fertilizer for plants.
The scheme, which allows European companies to trade their emissions of carbon
greenhouse gases, was designed
as a cost - effective, economically liberal solution to
global warming.
The research suggests that — contrary to some prior findings — CO2 led the prior round of
global warming rather than vice versa, just
as it continues to do today thanks to rising emissions of CO2 and other
greenhouse gases.
Interior Secretary Dirk Kempthorne, however, made clear several times during a press conference announcing the department's decision that, despite his acknowledgement that the polar bear's sea ice habitat is melting due to
global warming, the ESA will not be used
as a tool for trying to regulate the
greenhouse gas emissions blamed for creating climate change.
The models also include the
greenhouse gas emissions and other pollutants that result from these processes, and they incorporate all of that information within a
global climate model that simulates the physical and chemical processes in the atmosphere,
as well
as in freshwater and ocean systems.
Such savings are key
as U.S. households are responsible for 626 million metric tons of carbon dioxide emissions per year, nearly 40 percent of U.S.
greenhouse gas emissions and 8 percent of
global emissions.
U.S. scientists say the evidence linking rising levels of
greenhouse gases and
global warming is
as strong
as the link between smoking and lung cancer
As roughly 30 percent of
global permafrost carbon is concentrated within 7 percent of the permafrost region in Alaska, Canada, and Siberia, this study's findings also renew scientific interest in how carbon uptake by thermokarst lakes offsets
greenhouse gas emissions.
For the industrial era, Lovejoy's analysis uses carbon - dioxide from the burning of fossil fuels
as a proxy for all man - made climate influences - a simplification justified by the tight relationship between
global economic activity and the emission of
greenhouse gases and particulate pollution, he says.
Your article on a slowdown in the increase in
global emissions of
greenhouse gases cites energy efficiency
as a key...
«This underscores that large, sustained changes in
global temperature like those observed over the last century require drivers such
as increased
greenhouse gas concentrations,» said lead author Patrick Brown, a PhD student at Duke's Nicholas School of the Environment.
Without any action, the world is on track to achieve at least 4 degrees C warming of
global average temperatures by 2100,
as the world hits 450 parts - per - million of
greenhouse gases in 2030 and goes on to put out enough
greenhouse gas pollution to achieve
as much
as 1300 ppm by 2100.
Pokorny's work, coupled with a controversial new theory called the «biotic pump,» suggests that transforming landscapes from forest to field has at least
as big an impact on regional climate
as greenhouse gas — induced
global warming.