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<blockquote data-quote="FB" data-source="post: 368263" data-attributes="member: 120">The push will be for hydrogen based on the argument that you can produce the gas using renewable electricity.&nbsp; What they haven't yet explained or fully considered is that when you burn hydrogen it converts to water, and water vapour is one of the worst green house gases - <a href="https://yaleclimateconnections.org/2008/02/common-climate-misconceptions-the-water-vapor-feedback-2/">The water vapor feedback » Yale Climate Connections</a>&nbsp; .&nbsp; At the moment water vapour is a bi-product of the warming effect of CO2, what will happen when the 2.6 billion vehicles used daily all start belching it out across the planet?Secondly, to produce hydrogen you split it out from water, creating oxygen.&nbsp; What's wrong with that you say, we need oxygen to survive.&nbsp; Yes indeed, but the level of oxygen in the atmosphere is balanced and we have seen that throwing a few hundred ppm of any chemical in to the atmosphere can have very severe, unintended consequences.&nbsp; Oxygen is an incredibly reactive gas, what will be the effect on the delicate environmental balance if we start belching tonnes of O2 in to the lower or upper atmosphere?Yes, we need to stop using hydrocarbons at the level we currently are but we also need to recognise that ANYTHING we do will have an impact on the planet.&nbsp; Tidal electricity affects water currents and destroys fish breeding grounds.&nbsp; Wind power changes weather patterns by altering air currents and also impacts on the migration of birds.&nbsp; Solar energy takes up huge swathes of land which are then no longer available for the production of food and creates hot spots because you are concentrating heat in very small areas.I have no idea how we square this circle.&nbsp; I suspect the best option is to reduce the population and reduce consumption but no one is brave enough to bring those discussions to the table as pushing birth control makes you sound like a fascist with all the religious groups will up in arms, and reducing consumption interferes with the capitalist system and would threaten the super rich.</blockquote>

[QUOTE="FB, post: 368263, member: 120"] The push will be for hydrogen based on the argument that you can produce the gas using renewable electricity. What they haven't yet explained or fully considered is that when you burn hydrogen it converts to water, and water vapour is one of the worst green house gases - [URL="https://yaleclimateconnections.org/2008/02/common-climate-misconceptions-the-water-vapor-feedback-2/"]The water vapor feedback » Yale Climate Connections[/URL] . At the moment water vapour is a bi-product of the warming effect of CO[SIZE=2]2,[/SIZE] what will happen when the 2.6 billion vehicles used daily all start belching it out across the planet? Secondly, to produce hydrogen you split it out from water, creating oxygen. What's wrong with that you say, we need oxygen to survive. Yes indeed, but the level of oxygen in the atmosphere is balanced and we have seen that throwing a few hundred ppm of any chemical in to the atmosphere can have very severe, unintended consequences. Oxygen is an incredibly reactive gas, what will be the effect on the delicate environmental balance if we start belching tonnes of O[SIZE=2]2 [/SIZE]in to the lower or upper atmosphere? Yes, we need to stop using hydrocarbons at the level we currently are but we also need to recognise that ANYTHING we do will have an impact on the planet. Tidal electricity affects water currents and destroys fish breeding grounds. Wind power changes weather patterns by altering air currents and also impacts on the migration of birds. Solar energy takes up huge swathes of land which are then no longer available for the production of food and creates hot spots because you are concentrating heat in very small areas. I have no idea how we square this circle. I suspect the best option is to reduce the population and reduce consumption but no one is brave enough to bring those discussions to the table as pushing birth control makes you sound like a fascist with all the religious groups will up in arms, and reducing consumption interferes with the capitalist system and would threaten the super rich. [/QUOTE]

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