Carbon Emissions - one problem among many

The debate on climate change often focuses on the level of Carbon Emissions (CO2) and global warming but the overall complexity of the earth's environment means there are several other possible serious factors to consider. Some of  these are listed below - 

Acid Oceans: the amount of carbonic acid in the oceans and the loss of aragonite,

Ozone Depletion: this was the environmental issue of the 1970s and remains a current concern as trapping warmer air closer to the surface of the planet means a colder stratosphere and hence ozone comes under threat again from those chemicals still is use which deplete it.

Fresh Water: Water is becoming so scarce in many parts of the planet, despite unseasonal periodic flooding that underground aquifers are being pumped out and cannot be replenished,

Biodiversity: continued mass extinction of species has considerable impact on ecosystems and on human habitation - the current rate of change has far exceeded levels of adapatability,

Nitrogen and Phospherus cycles: agriculture and fertilisers, burning fossil fuels/timber/crops and human sewage have contributed nitrogen in such quantities that dead zones and algae blooms are now more frequent in the oceans,

Aerosol Loading: dust, sulphates and other particles created by human activity continue to affect air quality and hence have a negative impact on agricultural crops and human health,

Chemical pollution: There are almost 100,000 different human made chemicals now in use on the planet among these are toxic heavy metals (such as lead) and persistent organic pollutants (such as DDT, PCBs and dioxins).  These have strong detrimental effects on humans.

Many of these factors are causally linked to each other and only a comprehensive strategy on climate change togther with a wider linkage to other aspects of pollution has any hope of succeeding.