The technologies for ramping down greenhouse gas emissions already exist, for the most part. They include swapping fossil fuels for renewable sources, boosting energy efficiency, and discouraging carbon emissions by putting a price on them. Read more about such solutions here. The world technically has only one-fifth of its "carbon budget" —the total is 2. Halting the trends in motion will require more than just phasing out fossil fuels. In fact, the paths to halting global temperature increases of 1.
Those include planting trees, conserving existing forests and grasslands, and capturing CO 2 from power plants and factories. All rights reserved. Share Tweet Email. Why it's so hard to treat pain in infants. This wild African cat has adapted to life in a big city. Animals Wild Cities This wild African cat has adapted to life in a big city Caracals have learned to hunt around the urban edges of Cape Town, though the predator faces many threats, such as getting hit by cars.
India bets its energy future on solar—in ways both small and big. Environment Planet Possible India bets its energy future on solar—in ways both small and big Grassroots efforts are bringing solar panels to rural villages without electricity, while massive solar arrays are being built across the country.
Go Further. Animals Climate change is shrinking many Amazonian birds. Animals Wild Cities This wild African cat has adapted to life in a big city.
Animals This frog mysteriously re-evolved a full set of teeth. Over the same period, global temperature has risen markedly. It is therefore extremely unlikely that the Sun has caused the observed global temperature warming trend over the past half-century. Images of Change. Explore a stunning gallery of before-and-after images of Earth from land and space that reveal our home planet in a state of flux.
Climate Mobile Apps. Keep track of Earth's vital signs, see the planet in a state of flux and slow the pace of global warming with NASA's free mobile apps. Climate Time Machine. Travel through Earth's recent climate history and see how increasing carbon dioxide, global temperature and sea ice have changed over time. Eyes on the Earth. Global Ice Viewer. Global Carbon Dioxide Emissions, — Notes Note: Carbon dioxide emissions have risen rapidly for the past 70 years.
Greenhouse Gas Emissions for Major Economies, — Per Capita Greenhouse Gas Emissions, Greenhouse Gas Intensity, Notes Greenhouse gas intensity is a measure of the amount of emissions relative to GDP.
Notes CO2 accounts for about 76 percent of total greenhouse gas emissions. Source Inventory of U. Ocean-atmosphere exchange The largest natural source of carbon dioxide emissions is from ocean-atmosphere exchange. Plant and animal respiration An important natural source of carbon dioxide is plant and animal respiration, which accounts for Soil respiration and decomposition Another important natural source of carbon dioxide is soil respiration and decomposition, which accounts for Volcanic eruptions A minor amount carbon dioxide is created by volcanic eruptions, which accounts for 0.
To go back to the main page for the sources of emissions click here 1. Jain, M. Raupach, J. Schwinger, S. Sitch, B. Stocker, N. Viovy, S. Zaehle, C.
Huntingford, P. Friedlingstein, R. Andres, T. Boden, C. Jourdain, T. Conway, R. Houghton, J. House, G. Marland, G. Peters, G. Van Der Werf, A. Andrew, L. Bopp, J. Canadell, E. Kato, P. Ciais, S. Doney, C. Enright, N. Zeng, R. Keeling, K. Klein Goldewijk, S.
Levis, P. Levy, M. Lomas, and B. Van De Wal, B. De Boer, L. Lourens, P. Denman, K. Brasseur, A. Chidthaisong, P. Ciais, P. Cox, R. Dickinson, D. Hauglustaine, C. Heinze, E. Holland, D.
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