{"id":27619,"date":"2022-11-22T10:34:18","date_gmt":"2022-11-22T10:34:18","guid":{"rendered":"https:\/\/www.innovationnewsnetwork.com\/?p=27619"},"modified":"2022-11-22T10:35:34","modified_gmt":"2022-11-22T10:35:34","slug":"transitioning-to-green-energy-could-produce-more-harmful-carbon-emissions","status":"publish","type":"post","link":"https:\/\/www.innovationnewsnetwork.com\/transitioning-to-green-energy-could-produce-more-harmful-carbon-emissions\/27619\/","title":{"rendered":"Transitioning to green energy could produce more harmful carbon emissions"},"content":{"rendered":"
However, a recent study indicates that moving the world\u2019s energy system away from fossil fuels and building green energy resources will generate carbon emissions by itself. This is because the construction of renewable energy sources, such as wind turbines, solar panels<\/a>, and other new infrastructure consumes energy, some of which comes from the fossil fuels we are trying to eradicate.<\/p>\n The study, published in the journal Proceedings of the National Academy of Sciences<\/em><\/a>, suggests that to overcome this issue, green energy sources need to be constructed quickly. This will decrease the input of carbon emissions, because more renewable energy early on means fewer fossil fuels are needed to power the changeover.<\/p>\n \u201cThe message is that it is going to take energy to rebuild the global energy system, and we need to account for that,\u201d said lead author\u00a0Corey Lesk, who did the research as a student at the Columbia Climate School\u2019s\u00a0Lamont-Doherty Earth Observatory.<\/p>\n \u201cAny way you do it, it\u2019s not negligible. But the more you can initially bring on renewables, the more you can power the green energy transition with renewables.\u201d<\/p>\n The researchers calculated the possible emissions produced by energy use in mining, manufacturing, transport, construction, and other activities needed to create massive farms of solar panels and wind turbines, along with more limited infrastructure for geothermal and other green energy sources.<\/p>\n Previous research has projected the cost of new energy infrastructure in dollars\u2014$3.5tr a year every year until 2050 to reach net-zero emissions,\u00a0according to one study<\/a>, or up to about $14tr for the US alone in the same period,\u00a0according to another<\/a>. The new study appears to be the first to project the cost of greenhouse gases.<\/p>\n On the current slow pace of renewable infrastructure production (predicted to lead to 2.7\u00b0C warming by the end of the century), the researchers estimate these activities will produce 185 billion tons of carbon dioxide by 2100.<\/p>\n This alone is equivalent to five or six years of current global emissions, which is a hefty added burden on the atmosphere. However, if the world builds green energy infrastructure fast enough to limit warming to two degrees\u2014the current international agreement aims to come in under this\u2014those emissions would be halved to 95 billion tons. Moreover, limiting warming to 1.5\u00b0C, the cost would be only 20 billion tonnes by 2100.<\/p>\n For this study, the researchers only considered carbon dioxide emissions, which make up around 60% of ongoing global warming. Other greenhouse gases, including methane and nitrous oxide, could have different effects.<\/p>\n Other effects of the move to green energy are hard to quantify, but could be substantial. This new high-tech hardware will require not just massive amounts of base metals, including copper, iron, and nickel, but previously lesser-used rare elements such as lithium, cobalt, yttrium, and neodymium.<\/p>\n Many commodities would likely need to be sourced from\u00a0previously untouched places\u00a0with fragile environments, including\u00a0the deep sea, African rainforests, and Greenland. Solar panels and wind turbines would directly consume large stretches of land,\u00a0with attendant potential effects\u00a0on ecosystems and people living there.<\/p>\n Lesk said: \u201cWe\u2019re laying out the bottom bound. The upper bound could be much higher, but the result is encouraging.\u201d<\/p>\n Given recent price drops for renewable technologies, 80-90% of the world\u2019s green energy needs could be installed in the next few decades, especially if current subsidies for fossil-fuel production are diverted to renewables. \u201cIf we get on a more ambitious path, this whole problem goes away. It\u2019s only bad news if we don\u2019t start investing in the next five to ten years,\u201d Lesk explained.<\/p>\n The researchers also looked at carbon emissions from adapting to sea-level rise and found that the construction of sea walls and moving cities inland, where necessary, would generate one billion tonnes of carbon dioxide by 2100.<\/p>\n Again, this would be only part of the cost of adaptation, as they did not look at infrastructure to control inland flooding, irrigation in areas that might become drier, adapting buildings to higher temperatures, or other needed projects.<\/p>\n \u201cDespite these limitations, we conclude that the magnitude of CO2<\/sub> emissions embedded in the broader climate transition are of geophysical and policy relevance. Transition emissions can be greatly reduced under faster-paced decarbonisation, lending new urgency to policy progress on rapid green energy deployment,\u201d the authors concluded.<\/p>\n","protected":false},"excerpt":{"rendered":" The construction of green energy sources consumes energy, some of which comes from the fossil fuels we are trying to eradicate.<\/p>\n","protected":false},"author":22,"featured_media":27625,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[24204],"tags":[689,24134],"acf":[],"yoast_head":"\nRebuilding the global energy system requires energy usage<\/h3>\n
Current slow production of green energy sources could be harmful<\/h3>\n
Other effects of the switch to renewable energy<\/h3>\n