Energy, Why We Need Coal and Oil and Nuclear Power

We are being told that we need to get rid of 'dirty energy.' We are told that we cannot build any more 'dirty power' plants, instead we should build expensive (and immature) renewable plants all over the world.
But what is 'dirty energy?'
Coal, Oil, Natural Gas, Nuclear Fission generated power.
Why?
All of the fossil fuels must be burnt to produce power, causing greenhouse gases to be released into the air. This is 'bad.' Nuclear fission produces radioactive byproducts that must be stored. This is also 'bad.'
Why do we need them?
Without these forms of power, modern human life ceases to exist. Communication would be completely disrupted and the modern economy would collapse. Food supplies would dwindle then disappear as packaged foods stopped being made. Transportation grids would fall apart and any sort of monetary transaction would be done in cash or barter.
If you do not believe this could happen take a look at Africa and see how life exists without clean water(electric pumps and water treatment) and cheap power.
The main reasons for getting rid of dirty power is that it hurts the environment and hurts Humans. No doubt it hurts the environment (see this blog on how to reduce that.)
However, the argument that it hurts Humans is a fallacy. Let me show you why.
My first argument is refrigeration. Without refrigeration millions of people would die. Food would spoil, supermarkets would be useless and the current density levels in cities would be unsustainable. Our food production chain would become so inefficient that is would effectively collapse. Millions would starve in the 'famine.' Note that it may be possible to produce similar amounts of food at the start of the food chain, but with food spoilage throughout the chain the end of the chain would lack the sustenance to support our current demand. Reducing heavy metal contents in the air to reduce 'possible' diseases for exposure (a few hundred, maybe thousands, of occurrences) hardly justifies millions starving to death.
My second argument is computers. Without computers, our current economy would collapse. Assuming the world economy did not collapse, the ensuing inefficiency of other data collection and processing methods would kill off millions of people. How? Modern medicine would cease to exist. Modern health care systems would disappear. Emergency response would cease to functions. Modern medicine increases the lifespan and quality of life for millions. Health care does the same. Effective emergency response (fire, ambulance and police) save thousands each year. Does less soot in the air preventing a 'possible' lung cancer or asthma case (thousands cases, admittedly) justify allowing millions to go without treatment?
Our 'dirty power' has bettered the lives of Humans for generations now. To prevent us from continuing to spread these gains in technology (which all need reliable power) is criminal. We need to expand our 'dirty power' to continue the gains around the world.
'Dirty power' saves lives. We can do better, no doubt, but right now it is better to have imperfect than not having any.