How much will it heat?

Worst conditions, 20th century will end 4 ° C warmer than 1990.
Designing what can be done around the world:
-America and North America
Plantations and meters to increase with less cold, as well as flooding and erosion. Heat waves, jelly retraction and temperate. Some regions reduce half of their species.
-South America
Changes in temperature and changes to biomes, especially in tropical regions. In Brazil the driest north, which, together with deforestation, could become half of the Amazon in cerrado.
The center of the caatinga would become a desert and the southeast would become more rainy. Residents of the coastal zone affected by rising sea levels.
-Africa
A joint venture would cut half in several countries. Hunger and thirst hit 250 million people by 2020.
-Asia
As the Himalayan glaciers are defeated, they are flooded and
-Markets and oceans
The sea level can rise about 1 meter. Excess CO2 would acidify the oceans, threatening the corals and species that depend on them.
-Polar Regions
In three decades, a Greenland and the Arctic would run out of ice in the summer.