News tagged with carbon dioxide emissions

Grid realities cancel out some of wind power's carbon savings

(Phys.org) -- Wind energy lowers carbon emissions, but adding turbines to the current grid system does not eliminate emissions proportionally, according to a report by researchers at the Argonne National Laboratory.

Technology / Energy & Green Tech

created 1 hour ago | popularity 3.3 / 5 (3) | comments 0 | with audio podcast

Carbon dioxide emissions reach record high

Emissions of heat-trapping carbon dioxide reached an all-time high last year, further reducing the chances that the world could avoid a dangerous rise in global average temperature by 2020, according to the International ...

Space & Earth / Environment

created 21 hours ago | popularity 3.8 / 5 (6) | comments 4

Computer model used to pinpoint prime materials for efficient carbon capture

When power plants begin capturing their carbon emissions to reduce greenhouse gases – and to most in the electric power industry, it's a question of when, not if – it will be an expensive undertaking.

Chemistry / Materials Science

created May 27, 2012 | popularity 5 / 5 (1) | comments 2 | with audio podcast

Scientists track your carbon footprint, step by step

If you're driving your SUV to the farmers market to buy local asparagus and thinking you're making a difference for the planet, - not so fast. You're focused on a detail and ignoring the gas-hogging elephant in the room.

Space & Earth / Environment

created May 21, 2012 | popularity 5 / 5 (2) | comments 1

Oxygen-separation membranes could aid in CO2 reduction

It may seem counterintuitive, but one way to reduce carbon dioxide emissions to the atmosphere may be to produce pure carbon dioxide in powerplants that burn fossil fuels. In this way, greenhouse gases — once isolated ...

Chemistry / Materials Science

created May 15, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Measuring CO2 to fight global warming: Scientists develop way to enforce future greenhouse gas treaty

If the world's nations ever sign a treaty to limit emissions of climate-warming carbon dioxide gas, there may be a way to help verify compliance: a new method developed by scientists from the University of ...

Space & Earth / Environment

created May 14, 2012 | popularity 3.2 / 5 (9) | comments 6 | with audio podcast

Ocean's carbon dioxide uptake reduced by climate change

(PhysOrg.com) -- How deep is the ocean's capacity to buffer against climate change? As one of the planet's largest single carbon absorbers, the ocean takes up roughly one-third of all human carbon emissions, ...

Space & Earth / Earth Sciences

created Jul 10, 2011 | popularity 4.9 / 5 (12) | comments 15 | with audio podcast

NOAA study suggests aerosols might be inhibiting global warming

(PhysOrg.com) -- A new study led by the U.S, National Oceanic and Atmospheric Administration (NOAA) shows that tiny particles that make their way all the way up into the stratosphere may be offsetting a global ...

Space & Earth / Earth Sciences

created Jul 22, 2011 | popularity 4.4 / 5 (17) | comments 28 | with audio podcast report

Global warming pause linked to sulfur in China

Scientists have come up with a possible explanation for why the rise in Earth's temperature paused for a bit during the 2000s, one of the hottest decades on record.

Space & Earth / Earth Sciences

created Jul 04, 2011 | popularity 4.1 / 5 (20) | comments 40

Report: Direct removal of carbon dioxide from air likely not viable

Technologies for removing carbon dioxide from the atmosphere are unlikely to offer an economically feasible way to slow human-driven climate change for several decades, according to a report issued by the American Physical ...

Space & Earth / Earth Sciences

created May 09, 2011 | popularity 5 / 5 (7) | comments 49 | with audio podcast

Conventional fossil fuels sometimes 'greener' than biofuels: study

There’s a race afoot to give biofuel wings in the aviation industry, part of an effort to combat soaring fuel prices and cut greenhouse gas emissions. In 2008, Virgin Atlantic became the first commercial ...

Technology / Energy & Green Tech

created May 11, 2011 | popularity 5 / 5 (4) | comments 6 | with audio podcast

Recipe for success: Recycled glass and cement

(PhysOrg.com) -- Michigan State University researchers have found that by mixing ground waste glass into the cement that is used to make concrete, the concrete is stronger, more durable and more resistant ...

Technology / Engineering

created Feb 21, 2012 | popularity 4.9 / 5 (8) | comments 18 | with audio podcast

Have we reached peak travel?

(PhysOrg.com) -- Since the 1970s, passenger travel by vehicles and airplanes has grown rapidly in industrialized countries, and the International Energy Agency has predicted steady, though slower, travel growth ...

Other Sciences / Mathematics

created Jan 03, 2011 | popularity 3.4 / 5 (8) | comments 8 | with audio podcast report

Putting the pedal to the metal: Lithium metal improves fuel cells

(PhysOrg.com) -- Water splitting is a clean way to generate hydrogen, which is seen by many as the fuel of the future. Scientists from the Energy Technology Research Institute, AIST in Tsukuba, Japan now report ...

Chemistry / Materials Science

created May 14, 2010 | popularity 3.9 / 5 (15) | comments 2 | with audio podcast

Paris building to be warmed by commuters' body heat

(PhysOrg.com) -- Paris Habitat, owner of a low-income public housing project in Paris, is planning to use the excess body heat of commuters in a subway station beneath it to warm an apartment building.

Technology / Energy & Green Tech

created Sep 10, 2010 | popularity 4.5 / 5 (4) | comments 3 | with audio podcast report

List of countries by carbon dioxide emissions

This is a list of sovereign states by carbon dioxide emissions due to human activity. The data presented below corresponds to emissions in 2004. The data itself was collected in 2007 by the CDIAC for United Nations. The data considers only carbon dioxide emissions from the burning of fossil fuels, but not emissions from deforestation, and fossil fuel exporters, etc.

These statistics are rapidly dated due to huge recent growth of emissions in Asia. The United States is the 10th largest emitter of carbon dioxide emissions per capita as of 2004. According to preliminary estimates, since 2006 China has had a higher total emission due to its much larger population and an increase of emissions from power generation. China is the 91st largest emitter of carbon dioxide emissions per capita as of 2004.

Some dependencies and territories whose independence has not been generally recognized are also included, as they are in source data.

Certain entities are mentioned here for purposes of comparison. These are indicated in italics and are not counted in the ordering of sovereign states. (See also: carbon cycle)

For more information about List of countries by carbon dioxide emissions, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.