Changes in permafrost temperatures at various depths in Fairbanks (Alaska)
Widespread loss of discontinous permafrost will trigger erosion or subsidence of ice-rich landscapes, change hydrologic processes, and release CO₂ and methane to the atmosphere.

Great ocean conveyor belt
The global conveyor belt thermohaline circulation is driven primarily by the formation and sinking of deep water (from around 1500m to the Antarctic bottom water overlying the bottom of the ocean) in the Norwegian Sea.

Potential impact of sea-level rise on Bangladesh
Bangladesh, one of the world's poorest nations is also the country most vulnerable to sea-level rise.

Potential impact of sea level rise: Nile Delta (today)
The Nile Delta is one of the oldest intensely cultivated areas on earth. It is very heavily populated, with population densities up to 1600 inhabitants per square kilometer. The low lying, fertile floodplains are surrounded by deserts. Only 2,5% of Egypt's land area, the Nile delta and the Nile valley, is suitable for intensive agriculture. Most of a 50 km wide land strip along the coast is less than 2 m above sea-level and is protected from flooding by a 1 to 10 km wide coastal sand belt only, shaped by discharge of the Rosetta and Damietta branches of the Nile. Erosion of the protective sand belt is a serious problem and has accelerated since the construction of the Aswan dam.

Potential impact of sea level rise: Nile Delta (0.5 to 1.0 metres)
Rising sea level would destroy weak parts of the sand belt, which is essential for the protection of lagoons and the low-lying reclaimed lands. The impacts would be very serious: One third of Egypt's fish catches are made in the lagoons. Sea level rise would change the water quality and affect most fresh water fish. Valuable agricultural land would be innundated.

Changes on cereal production under three different GCM equilibrium scenarios
The figure shows change in cereals production under three different GCM equilibrium scenarios (percent from base estimated in 2060).

Impact of temperature rise on robusta coffee in Uganda
In Uganda, the total area suitable for growing Robusta coffee would be dramatically reduced with a temperature increase of 2 centigrades.

Freshwater stress
Even if the world maintained the pace of the 1990s in water supply development, it would not be enough to ensure that everyone had access to safe drinkning water by 2025.

Population and freshwater stress
One study suggests that although global water conditions may worsen by 2025 due to population pressure, climate change could have a net positive impact on global water resources.

Spread of major tropical vector-borne diseases
Climate change and altered weather patters would affect the range (both altitude and latitude), intensity, and seasonality of many vector-borne and other infectioius diseases.

Potential dengue transmission in case of temperature rise
A warmer climate increases occasions of vector borne tropical diseases. The figure depicts weeks of potential dengue transmission under current temperature and 2°C and 4 °C warming.

Malaria.
Plasmodium vivax, with the Anopheles mosquito as a vector, is an organism causing malaria. The main climate factors that have bearing on the malarial transmission potential of the mosquito population are temperature and precipitation.