{"id":3251,"date":"2023-02-28T08:01:51","date_gmt":"2023-02-28T08:01:51","guid":{"rendered":"https:\/\/aviation-news.info\/?p=3251"},"modified":"2024-08-12T15:13:12","modified_gmt":"2024-08-12T12:13:12","slug":"green-flights-not-in-easy-reach-warn-scientists","status":"publish","type":"post","link":"https:\/\/aviation-news.info\/?p=3251","title":{"rendered":"Green flights not in easy reach, warn scientists"},"content":{"rendered":"
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You may be hoping that guilt-free flying is just around the corner, but scientists warn it is still a long way off.<\/b><\/p>\n<\/div>\n<\/div>\n

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Plans for climate-friendly flying rest on creating greener jet fuels that have less impact on the environment.<\/p>\n<\/div>\n<\/div>\n

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Switching to sustainable fuel is also key to the government’s aim to reach “jet zero” flying by 2050.<\/p>\n<\/div>\n<\/div>\n

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But the Royal Society concludes there is currently no single, clear alternative to traditional fuel.<\/p>\n<\/div>\n<\/div>\n

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Flying is responsible for 2.4% of global greenhouse gas emissions and\u00a08% of UK emissions. These gases warm the atmosphere, contributing to global warming and climate change.<\/p>\n<\/div>\n<\/div>\n

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Demand for flights is expected to increase, and governments and the aviation industry are experimenting with ways to reduce the climate impacts of traditional kerosene fuel.<\/p>\n<\/div>\n<\/div>\n

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The authors of the Royal Society report looked at four options for greener fuels to replace the 12.3m tonnes of jet fuel used annually in the UK.<\/p>\n<\/div>\n<\/div>\n

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It concluded that none could replace fossil jet fuel in the short term.<\/p>\n<\/div>\n<\/div>\n

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Some airlines now use very small amounts of biofuel, largely made from crops. London Heathrow is the largest global user of biofuels but it accounts for just 0.5% of the airport’s fuel.<\/p>\n<\/div>\n<\/div>\n

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To produce enough to supply the UK aviation industry would require half of Britain’s farming land, putting pressure on food supplies, the Royal Society says.<\/p>\n<\/div>\n<\/div>\n

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Another option is fuel made from hydrogen produced with green electricity. However the UK currently does not generate enough renewable electricity to make enough green hydrogen.<\/p>\n<\/div>\n<\/div>\n

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\"Chart<\/picture><\/span><\/div>\n<\/figure>\n<\/div>\n
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Another major barrier is that existing plane engines cannot use hydrogen-based fuel.<\/p>\n<\/div>\n<\/div>\n

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Ammonia and synthetic fuels are also under consideration, but they need even more green hydrogen and it is unclear if existing planes could use them.<\/p>\n<\/div>\n<\/div>\n

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The authors say it remains unclear exactly how much each alternative fuel would reduce the climate impacts of flying.<\/p>\n<\/div>\n<\/div>\n

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But they stress that in the long term a successful alternative fuel will probably be developed, but that airplanes and airports will need to be re-designed.<\/p>\n<\/div>\n<\/div>\n

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They are calling for more research into sustainable aviation fuel, suggesting that the UK could become a global leader if it invested in solving the problem.<\/p>\n<\/div>\n<\/div>\n

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  • Should you fly, drive or take the train?<\/li>\n
  • Airlines miss all but one climate target<\/li>\n
  • What’s the climate impact of private jets?<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n
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    A new fuel needs to be financially viable, safe, usable around the world, and to have high enough energy density to be used on long-distance flights, they say.<\/p>\n<\/div>\n<\/div>\n

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    But environmental campaigners say the government must also encourage people to fly less.<\/p>\n<\/div>\n<\/div>\n

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    “Not all aspects of modern life in Western nations have an easy ‘technofix’ for the damage they do to the environment, and nowhere is this truer than for air travel,” suggests Leo Murray, director of innovation at climate charity Possible.<\/p>\n<\/div>\n<\/div>\n

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    His organisation wants the government to tax frequent flyers, the small number of people who take around 70% of flights from UK airports.<\/p>\n<\/div>\n<\/div>\n

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    “A Frequent Flyer Levy would target reduced demand amongst the group responsible for most of the environmental damage today, while leaving the annual family holiday untouched,” he says.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

    You may be hoping that guilt-free flying is just around the corner, but scientists warn it is still a long way off. Plans for climate-friendly flying rest on creating greener jet fuels that have less impact on the environment. Switching to sustainable fuel is also key to the government’s aim to reach “jet zero” flying …<\/p>\n","protected":false},"author":1,"featured_media":3252,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[102,88],"tags":[],"class_list":["post-3251","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured-en","category-flights"],"yoast_head":"\nGreen flights not in easy reach, warn scientists - aviation news<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aviation-news.info\/?p=3251\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Green flights not in easy reach, warn scientists\" \/>\n<meta property=\"og:description\" content=\"You may be hoping that guilt-free flying is just around the corner, but scientists warn it is still a long way off. 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