Environment

Situated north of the USA, between the Atlantic and Pacific oceans, Canada is the world's second largest country (Russia takes the guernsey). It extends some 7700km (4775mi) east to west and 4600km (2850mi) north to south. Nearly 90% of Canadians huddle along the 6379km (3955mi) southern border with the USA. Though much of the land is lake and river-filled forest, there are mountains, plains and even a small desert. The Great Plains, or prairies, cover Manitoba, Saskatchewan and parts of Alberta. These former grasslands are now responsible for Canada's abundant wheat crop. Western Canada is known for its Rocky Mountains, while the east has the country's major cities and also its most visited geographic feature, Niagara Falls. The Canadian Shield, an ancient, rocky and glacially sanded region, formed more than 2.5 billion years ago, covers most of the north of the country. The Arctic region, in the far north, is where you'll find frozen tundra merging into islands that are ice-bound for most of the year.

Canada has an incredible mix of native flora and fauna. It comprises eight vegetation zones, most of which are dominated by forest. Some of the common tree species include white and black spruce, balsam and Douglas fir, western red cedar, white pine and the sugar maple, one of Canada's best-known symbols - the maple leaf appears on the country's flag. Endemic animals include the grizzly, black, brown and polar bears, beaver, buffalo, wolf, coyote, lynx, cougar, deer, caribou, elk and moose. There are also 500 species of birds, such as the great blue heron, Canada geese and many varieties of duck. Moves are afoot to ensure protection for endangered species like the beluga whale, burrowing owl whooping crane and eastern wolf. Canada has 39 national parks, 145 parks-administered national historic sites and 13 areas of such natural significance that they are on the UN World Heritage list.

Canada has four distinct seasons, although their arrival times vary across the country. The single most significant factor in climate is latitude. As a rule of thumb, it gets colder the further north you go, so it's no accident that the warmest areas in the south are also the most populated. The western and eastern coasts are both very wet, though much of the rain falls during winter. In Saskatchewan, Manitoba and eastern Alberta the prairies are fairly dry all year. Canadian winters are long and hard: in more than two-thirds of the country, the average January temperature is a shivering -18°C (-0.4°F). July and August are the warmest months, when temperatures in the south are usually in the upper-20°Cs (low-80°Fs).

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