ProblemGlobal Warming

EffectsCoastal flooding threatening small islands

Food insecurity cause by drought

Extinction of some animal species

Desertification

Climate change

CausesThe major cause of global warming is emission of

greenhouse gases like Carbon dioxide, Nitrous oxide, Chlorofluorocarbons, methane, ozone and water vapor.

The largest contributor of the above gases is water vapor.

Since carbon oxide make more water vapor, we can say carbon dioxide is more harmful.

Carbon dioxideFossil fuels react with oxygen to produce large

amounts of carbon dioxide.

Carbon dioxide traps infra red rays(heat) from the earth thereby, preventing it from going to space

This acts like a head warmer to earth which makes it warmer.

SolutionsThe most common solution given is

afforestation, but this is quite slow

I think backing afforestation with large scale carbon sequestration.

Carbon sequestrationThis is the artificial capture of carbon dioxide from the

atmosphere to a reservoir

This is done by reacting carbon dioxide with metallic oxides. For example CaO + CO2 = CaCO3

The oxides required for the process are inexpensive.

Most of the resulting carbonates can be used for many important purposes. For example CaCO3 can be used in making drugs(calcium supplements)

During the sequestration with oxides like CaO and MgO heat it emitted. This heat can be harnessed and applied towards solving power problems.

ConclusionThe solutions to global warming should be:

Intensive afforestation

Carbon sequestration