- Less predictable climate-such as droughts and storms-lead to destruction of agriculture.
- Increase in storm strength, frequency, and unpredictability leaves many dead or homeless.
- Just as the hurricanes Rita and Katrina left the Southeast United States in shambles, increased shore activity by humans like beach resorts and summer homes combined with the increased intensity and frequency of storms will raise the damage and financial cost as well.
- Different climates will cause crops to suffer outside of their key temperature.
- Peat bogs such as those in Siberia will slowly but steadily release as much as 70,000 tonnes of methane gas from the dead plant material, multiplying the greenhouse effect and its consequences even more.
- Water is much more conducive to heat than air, and the underwater ecosystems of fish and plankton will deteriorate as organisms are thrust out of their normal climate.
- Extinction of fish can lead to a food chain collapse, and regions that thrive on sea food, such as Japan and South China, will experience major consequences.
- Phytoplankton that normally absorb CO2 from the air into the ocean decrease in efficiency due to the change in temperature, creating even more greenhouse gases.
- Earth's surface has more water than land. This means that the impact for all of these ocean-problems is even greater.
Melting of ice caps:
- Less surface area of the Earth will be covered by ice, which is considerably more reflective than water or land, increasing the sun's effect on the Earth as the latter two absorb more sunlight.
- Animals that make their home in the Arctic and Antarctic, such as penguins, polar bears, and seals, will lose large parts of their habitat. In addition, the salinity of the ocean will change dramatically, further destroying ecosystems and possibly species.
- The sea level will increase.
- The more frequent storms, like hurricanes and tsunamis, will gather strength from the warmer waters across the land. As stated earlier, the surface is mostly water, and global warming only increases it.
- Coastal regions and places with lower altitudes will be underwater, causing loss of homes, financial cost, and thousands of refugees.
- As more and more people try to live on less and less land, disease will spread more easily, potentially resulting in epidemics and mass death.
- This will cause landslides, flash floods, and glacier lake overflow.
- This increases the glacial runoff as the glaciers melt faster and faster.
- The Hindu Kush and Himalayan glacial melt will increase melting water supply to high density regions for a few decades, but then these areas will simply run out of water since the glaciers are the main source of water for many parts of Asia.
- "Rising atmospheric temperatures, longer droughts and side-effects of both, such as higher levels of ground-level ozone gas, are likely to bring about a substantial reduction in crop yields in the coming decades, large-scale experiments have shown" (The Independent, April 27, 2005)
- Increased national disasters cause the insurance industry to suffer due to increased property and population values in vulnerable coastal regions and increasing flood risks across the globe.
- Transportation systems like roads, airports, pipelines, and railways have to be maintained in the potentially harsh conditions, further raising costs.
- Coastal flood defenses will either have to be installed or upgraded as the number of category 5 storms.
- Decrease in land will perpetuate war as higher quantities of people vie for land.
- Repair work for more dangerous storms will use up more and more energy from oil or fossil fuels, and demand for such energy sources will soar.
- If something is not done soon, the intensity of storms will cause homes built from anything less than the most durable, expensive, and probably environmentally unfriendly materials will be destroyed, losing all hope of solvency by that method.
- Storm clouds blocking the sun will render solar panels useless
