Environment

Continent	Place	Height (ft)
N. America S. America Africa Pacific Europe Antartica	McKinley, Alaska Aconcagua, Argentina Kilimanjaro, Tanzania Jaya, New Guinea Mt Blanc, France-Italy Vinson Massif	20,320 22,834 19,340 16,500 15,771 16,864

Peak	Place	Height (ft)
Everest K2 Kanchenjunga Lhotse I Makalu I Lhotse II Dhaulagiri Manaslu I Cho Oyu Nanga Parbat Annapurna I Gasherbrum Broad Gosainthan Annapurna II GyachungKang Disteghil Sar Himalchuli Nutpse Masherbrum Nanda Devi Rakaposhi Kamet Namcha Barwa Gurla Mandhat Ulugh Muz Tagh	Nepal India India Nepal Nepal Nepal Nepal Nepal Nepal India Nepal India India Tibet Nepal Nepal India Nepal Nepal India India India India Tibet Tibet Xinjiang	29,028 28,250 28,208 27,923 27,824 27,560 26,810 26,760 26,750 26,660 26,504 26,470 26,400 26,287 26,041 25,910 25,868 25,801 25,726 25,660 25,645 25,550 25,447 25,445 25,355 25,340

Note: Some peaks mentioned above fall in the Indian State of Jammu & Kashmir but are illegally occupied by Pakistan

India's largest Peaks
Source: National Geographic Society
(Not counting the ones mentioned above)

Peak	Height (ft)
Skyang Kangri Jongsang Peak Sia Kangri Tent Peak Kabru Baltoro Kangri Mana Nepal Peak Badrinath Nunkun Pyramid Pauhunri Trisul Kangto Trisuli Dunagiri	24,750 24,472 24,350 24,165 24,002 23,990 23,860 23,500 23,420 23,410 23,400 23,385 23,360 23,260 23,210 23,184

The tallest peaks in the other continents of the world are not even taller than Thirty tallest mountains of India.

Highest Annual Precipitation
Source: US National Climatic Data Center

Years of record	Continent	Highest Avg (Inches)	Place	Elevation (feet)
38 29 30 32 9 14 22	Asia Oceania Africa S.America Australia N.America Europe	467.4 460 405 354 340 256 183	Mawsynram, India Mt. Waialeale, Hawai Debundscha, Cameroon Quibdo, Columbia Bellenden, Australia Henderson Lake, B.C. Crkvica, Bosnia-Herz.	4597 5148 30 120 5102 12 3337

Note: Llora, Columbia claims to get 523.6 inches of rainfall, according to their own measurement practices,procedures and period, but might not be recognized worldwide

Principal World Rivers
Source: Woods Hole Oceanographic Inst. Library

River	Continent	Outflow	Length (mi)
Nile Congo Niger	Africa Africa Africa	Mediterranian Sea Atlantic Ocean Atlantic Ocean	4160 2900 2590
Chang Huang Ob-Irtysh Lena Mekong Yenisey Ob Brahmaputra Indus	Asia Asia Asia Asia Asia Asia Asia Asia Asia	East China Sea Yellow Sea Gulf of Ob Laptev Sea South China Sea Kara Sea Gulf of Ob Bay of Bengal Arabian Sea	3964 3395 3362 2734 2700 2543 2268 1800 1800
Murray-Darling	Australia	Indian Ocean	2543
Volga	Europe	Caspian Sea	2290
Amazon Parana Purus Madiera Sao Francisco	S. America S. America S. America S. America S. America	Atlantic Ocean Rio de la Plata Amazon River Amazon River Atlantic Ocean	4000 2485 2100 2013 1988
Mississipi-Red Rock Mobile Mississipi Missouri-Red Rock Yukon Rio Grande	N. America N. America N. America N. America N. America N. America	Gulf of Mexico Mississipi River Gulf of Mexico Mississipi River Bering Sea Gulf of Mexico	3710 2540 2340 2315 1979 1900

The earth has thousands of waterfalls, some of considerable magnitude. Their relative importance is determined not only by height but also by volume of flow, steadiness of flow, crest width, whether the water drops sheerly or over a sloping surface, and where it descends in one leap or in a succession of leaps. A series of low falls flowing over a considerable distance is known as a cascade.

Name	Location	Continent	Elevation (ft)
Tugela#	S. Africa	Africa	2014
Jog, Sharavathi R.*	India	Asia	830
Wollomombi	Australia	Asia	1,100
Tully	Australia	Asia	885
Wallaman, Stony Cr.#	Australia	Asia	1,137
Helena	N. Zealand	Asia	890
Sutherland, Arthur R.#	N. Zealand	Asia	1,904
Gavarnie*	Austria	Europe	1,385
Maralsfossen(N)	Norway	Europe	1,535
Maralsfossen(S)#	Norway	Europe	2,149
Skjeggedal, Nybuai R.#**	Norway	Europe	1,378
Skykje**	Norway	Europe	984
Vetti, Morka-Koldedola R	Norway	Europe	900
Giessbach(C)	Switzerland	Europe	984
Staubbach	Switzerland	Europe	984
Trummelbach#	Switzerland	Europe	1,312
Della#	Canada	N.America	1,443
Takakkhaw, Daly Glacier#	Canada	N.America	1,200
Ribbon**	United States	N.America	1,612
Silver Strand, Meadow Br.**	United States	N.America	1,170
Yosemite##	United States	N.America	2,425
Glass	Brazil	S.America	1,325
Catarata de Candelas, Cusiana R	Colombia	S.America	984
Great, Kamarang R	Guyana	S.America	1,600
Angel#*	Venezuela	S.America	3,212
Cuquenan	Venezuela	S.America	2,000

Note:
Estimated mean annual flow, in cubic feet per second, of major waterfalls, are as follows: Niagara, 212,200; Paulo Afonso, 100,000; Urubupunga, 97,000; Iguazu, 61,000; Patosa-Maribondo, 53,000; Victoria, 35,4000; and Kaieteur, 23,400.
Elevation= total drop in feet in one or more leaps. # = falls of more than one leap; * = falls that diminish greatly seasonally; ** = falls that reduce to a trickle or are dry for part of each year. If the river names are not shown, they are same as the falls. R = river; (C) = cascade type.

Name	Size (sq mi)	Country
Arabian (E) Chihuahuan Dasht-e Kauir Gibson Gobi Great Sandy Great Victoria Kalahari Kara Kum Kyzyl Kum Libyan Namib Nubian Patagonia Rub a-Khali Sahara Sonoran Syrian Taklimakan Thar	70,000 140,000 30,000 120,000 500,000 150,000 150,000 225,000 120,000 100,000 450,000 48,000 100,000 300,000 250,000 3,500,000 70,000 100,000 140,000 100,000	Egypt US-Mex. Iran Australia Mongolia Australia Australia Africa Turkmenistan Kazakhstan Libya Africa Sudan Argentina S Arabia Africa US-Mex Saudia China India

Pollution:
Over the past century, the Earth's average temperature has increased by approximately 1 F, and is expected to rise to upto 6 F in this century. The earth naturally absorbs incoming solar radiation and emits thermal radiation back into space. This is then trapped by green-house gases in the earths atmosphere. Water vapor, Methane, Nitrous Oxide and Ozone and natural greenhouse gases. Human made greenhouse gases include CFC (Chloro flouro carbons), HCFC (Hydro CFC), HFC (Hydro flouro carbons), PFC (perflouro carbons), SF6 (Sulphur Hexaflouride) and ofcourse Carbon-di-oxide and carbon mono oxide.

The top 6 producers of CO2 in the world are USA, China, Russia, Japan, India and Germany.