what percentage of global man-made co2 emissions comes from worldwide aviation
4 percent cumulative effect
title: Environmental impact of aviation text: account. Like all human activities involving combustion, most forms of aviation release carbon dioxide (CO) and other greenhouse gases into the Earth's atmosphere, contributing to the acceleration of global warming and (in the case of CO) ocean acidification. These concerns are highlighted by the present volume of commercial aviation and its rate of growth. Globally, about 8.3 million people fly daily (three billion occupied seats per year), twice the total in 1999. U.S. airlines alone burned about 16.2 billion gallons of fuel during the twelve months between October 2013 and September 2014. In addition to the CO released by most title: Carbon Offsetting and Reduction Scheme for International Aviation text: Carbon Offsetting and Reduction Scheme for International Aviation Carbon Offsetting and Reduction Scheme for International Aviation, or CORSIA, is an emission mitigation approach for the global airline industry, developed by the International Civil Aviation Organization (ICAO). CORSIA addresses emissions from international air travel. The proposal has been described as "a delicate compromise between all involved in its elaboration." As per an IPCC report published in 1999, aviation accounted for approximately two percent of global carbon emissions due to human activity, as of 1992 . Per capita emissions from air travel is one of the highest in comparison to various other title: Airline text: global anthropogenic GHG emissions per annum. North America accounts for nearly 40 percent of the world's GHG emissions from aviation fuel use. CO2 emissions from the jet fuel burned per passenger on an average airline flight is about 353 kilograms (776 pounds). Loss of natural habitat potential associated with the jet fuel burned per passenger on a airline flight is estimated to be 250 square meters (2700 square feet). In the context of climate change and peak oil, there is a debate about possible taxation of air travel and the inclusion of aviation in an emissions trading scheme, with a title: Greenhouse gas text: consumers in the US, Japan, and Western Europe. Based on annual emissions data from the year 2004, and on a per-capita consumption basis, the top-5 emitting countries were found to be (in t per person, per year): Luxembourg (34.7), the US (22.0), Singapore (20.2), Australia (16.7), and Canada (16.6). Carbon Trust research revealed that approximately 25% of all emissions from human activities 'flow' (i.e., are imported or exported) from one country to another. Major developed economies were found to be typically net importers of embodied carbon emissions—with UK consumption emissions 34% higher than production emissions, and Germany (29%), Japan (19%) title: Environmental impact of aviation text: produces about 715 kg (1574 lb) of CO (but is equivalent to 1,917 kg (4,230 lb) of CO when the high altitude "climatic forcing" effect is taken into account). Within the categories of flights above, emissions from scheduled jet flights are substantially higher than turboprop or chartered jet flights. About 60 percent of aviation emissions arise from international flights, and these flights are not covered by the Kyoto Protocol and its emissions reduction targets. However, in a more recent development:The United Nations’ aviation arm overwhelmingly ratified an agreement Thursday [6 October 2016] to control global warming emissions from international airline