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GLOBAL WARMING AND DISEASES
What is Global warming?
Global warming is the observed increase in the average temperature of the Earth’s atmosphere and oceans in recent decades. The Earth's average near-surface atmospheric temperature rose 0.6 ± 0.2 °Celsius (1.1 ± 0.4 °Fahrenheit) in the 20th century .-wikipedia
Malaria
We all know that malaria is caused by parasites which is transmitted by the bite of
female mosquitoes.These weaklings are not as weak as their size suggests.These mosquitoes by their role in malaria kills between 1.1 and 2.7 million people worldwide every year.Where do you live? Perhaps you have not heard of people in your city dying of malaria.Sub-Saharan Africa accounts for mazority of the cases.Now hold back your tears.Around 1 million of those getting killed are children under5 years of age from these areas.These childhood deaths results mostly from cerebral malaria and anaemia.Note these have a cure.Malaria accounts for 25% of childhood mortality in Africa.Now what’s going to bring peace and security to the world?Right“Global Missile defence system" .Oh sorry I meant “Global disease defence system".Are we scared of malaria or for that matter any other diseases?We see and hear so many deaths in cities from diseases and accidents but still what are we scared of most ? - F16s or suicide bombings .If not scared then at least we take pride in boasting (may be genuine) that we are not afraid of them.Lets get back to the topic.
How does global warming relate to malaria?
Mosquitoes breed in warm, wet places. With the increase of rain and warmth during global warming, the population of mosquitoes will increase, making the risk of getting this disease also increase.There is a catch in this .Temperature affects the life cycle of malarial parasite.A temperature below 16 degree C and above 30 degree C is hostile to the parasite.Well as different parts of the world has different temperatures, the net effect of global warming will be an increase in areas with optimum temperature for the parasite.So we may expect (unlikely its our progeny who will suffer) to hear of malarias in areas where its not heard today.
What other diseases it could promote?
Hanta virus -
A deadly respiratory disease caused by wild rodents.Basically any disease associated with rodents will show a change in pattern with the rise in population of rodents due to warming.Eg. Crimean-Congo hemorrhagic fever, tularemia , rabies etc.
Skin Cancer-
Skin cancer is one of the main cancer concerns of the world when Global Warming hits. The skin cancer people could get most is melanoma. It is lethal. Early discovery is very important. If you have moles that are bothering you or are doing strange things such as changing size, shape, color, or if they bleed constantly, you should consult a doctor.(NOTE: the incidence of melanoma has increased by 300% in the past 40 years, some link this to ozone depletion and global warming.It may be due to increased recreational sun exposure early in life.)
