What are the causes of climate change in Canada?

Human activity is the main cause of climate change. People burn fossil fuels and convert land from forests to agriculture. Since the beginning of the Industrial Revolution, people have burned more and more fossil fuels and changed vast areas of land from forests to farmland.

Why does the melting of the ice caps lower the concentration of salt in the ocean?

While sea ice is frozen salt water, icebergs are pieces of glaciers, formed of compacted snowfall, and are therefore fresh water. Melting glaciers and icebergs release fresh water and reduce the salinity of the surrounding sea. The seawater also becomes less dense, changing patterns of ocean currents.

How does climate change affect the polar regions?

Climate change is amplified in the polar regions. The northern and southern reaches of the planet are warming faster than any area on Earth, with the Arctic ocean and air temperatures rising twice as much as elsewhere. In addition to having effects on wildlife, declining sea ice accelerates the rate of ocean warming.

What are the causes and effects of climate change in northern Canada?

Canada’s rapid warming is due to a number of factors, including a loss of snow and sea ice, which is increasing the absorption of solar radiation and causing larger surface warming than in other regions, according to the report.

Why is salinity generally lower around the continents?

Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these “salinity raising” factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.

How does ice melt affect salinity?

During the freezing process, the salt in the sea water is rejected, thereby increasing the salinity of the remaining sea water. When the ice melts, the fresh water is released back into the ocean, thus freshening it.

How does climate change affect the North Pole?

The Arctic is warming three times as fast and the global average. The Arctic is warming three times as fast and the global average. This is mainly because melting of snow and ice exposes a darker surface and increases the amount of solar energy absorbed in these areas (albedo effect).