Go by the Head Counts and not by the Gear Counts

Yes, the number of vehicles in operation worldwide is about  1.10  billion-units . Of these  around 255 million are in the U.S. alone.  But holding the U.S alone responsible for the entire 'climate change' is not a wise proposition. 

In fact who ever breathes, he/she  pollutes. If we go by this idea the combined population of  China,India, Pakistan and Bangladesh alone will be close to half of the world's population. The great scientists and climate change debaters forget the biggest polluters of the planet. They forget conveniently the severe stress that is caused to the planet earth on its water resources, land resources and so on. More people means more food production and  more fertilizers and pesticides for the paddy fields. More people means more dresses  and which may require the production of clothes which again require lot of factories in operation and chemicals.    Again the shelters for all which require cement, steel and other materials. 

Just because the vehicles are visible and they are on the roads, we can't brush aside  the pollution and stress caused by the developing countries. The argument 'you became industrialized much earlier" won't help.   In fact every one on this earth is responsible for the present status. Holding developed nations (the West) alone answerable   with the active assistance of the intellectuals will be nice to hear and read. But the problem will not get solved. 

Let the discussion be realistic and truthful. No need to debate with any pre-conceived notions. And these most populated  nations which spend huge sums for their defense budgets should not expect the UN or other agencies for funds perennially. 

TOP TEN COUNTRIES WITH THE HIGHEST POPULATION # Country 2000 Population 2010 Population 2012 Population 2050 Expected Pop. 1 China 1,268,853,362 1,330,141,295 1,343,239,923 1,303,723,332 2 India 1,004,124,224 1,173,108,018 1,205,073,612 1,656,553,632 3 United States 282,338,631 310,232,863 313,847,465 439,010,253 4 Indonesia 213,829,469 242,968,342 248,645,008 313,020,847 5 Brazil 176,319,621 201,103,330 193,946,886 260,692,493 6 Pakistan 146,404,914 184,404,791 190,291,129 276,428,758 7 Nigeria 123,178,818 152,217,341 170,123,740 264,262,405 8 Bangladesh 130,406,594 156,118,464 161,083,804 233,587,279 9 Russia 146,709,971 139,390,205 142,517,670 109,187,353 10 Japan 126,729,223 126,804,433 127,368,088 93,673,826 TOP TEN Countries 3,618,894,827 4,016,489,082 4,096,137,325 4,950,140,178 Rest of the World 2,466,012,769 2,829,120,878 2,921,709,597 4,306,202,522 TOTAL World Population 6,084,907,596 6,845,609,960 7,017,846,922 9,256,342,700 NOTES: (1) The Top 10 Most Populated Countries of the World Table was updated for June 30, 2012. (2) Detailed data for individual countries may be found clicking on each country name. (3) Demographic (population) estimates for years 2000, 2010, 2012 and 2050 are based mainly on mid-year data from the US Census Bureau website. (4) The China population data is for the mainland only. (5) Data from the Internet World Stats website may be cited, giving the due credit and establishing an active link back to Internet World Stats. (6) For definitions, navigation help and methodology, see the Site Surfing Guide. Copyright © 2001 - 2013, Miniwatts Marketing Group. All rights reserved worldwide. http://www.internetworldstats.com/stats8.html