climate blackpill
No.11740526 ViewReplyOriginalReport
Quoted By: >>11741705 >>11742193 >>11743667 >>11743698 >>11743743
>The annual increase in demand for electricity exceeds the entire output of photovoltaic electricity installations.
>The rise of C02 in the atmosphere has continued unabated for 60 years, regardless of policies by countries and the UN said to address climate change.
>Also problematic is the fact that wind/solar energy is not really renewable. In practice, the life expectancy of a wind turbine may be less than 15 years. Solar panels may last a few years longer but with declining efficiency, so both turbines and panels have to be replaced regularly at great financial, energy and environmental cost. Consider that building a typical wind turbine requires 817 energy-intensive tonnes of steel, 2,270 tonnes of concrete and 41 tonnes of non-recyclable plastic. Solar power also requires large quantities of cement, steel and glass as well as various rare earth metals.
>World demand for rare-earth elements — and Earth-destroying mining and refining — would rise 300 per cent to 1,000 per cent by 2050 just to meet the Paris goals. Ironically, the mining, transportation, refining and manufacturing of material inputs to the green energy solution would be powered mainly by fossil fuels (and we’d still have to replace all the machinery and equipment currently running on oil and gas with their electricity-powered equivalents, also using fossil fuel). In short, even if the energy transition were occurring as advertised, it would not necessarily be reflected in declining CO2 emissions.
>If we divide 2018 into energy segments, oil, coal and natural gas powered the globe for 309 out of 365 days, hydro and nuclear energy gave us 41 days, and non-hydro renewables (solar panels, wind turbines, biomass) a mere 15 days. If the race is towards a decarbonized finish line by 2050, we’re still pretty much stalled at the gate.
https://www.postcarbon.org/dont-call-me-a-pessimist-on-climate-change-i-am-a-realist/
>The rise of C02 in the atmosphere has continued unabated for 60 years, regardless of policies by countries and the UN said to address climate change.
>Also problematic is the fact that wind/solar energy is not really renewable. In practice, the life expectancy of a wind turbine may be less than 15 years. Solar panels may last a few years longer but with declining efficiency, so both turbines and panels have to be replaced regularly at great financial, energy and environmental cost. Consider that building a typical wind turbine requires 817 energy-intensive tonnes of steel, 2,270 tonnes of concrete and 41 tonnes of non-recyclable plastic. Solar power also requires large quantities of cement, steel and glass as well as various rare earth metals.
>World demand for rare-earth elements — and Earth-destroying mining and refining — would rise 300 per cent to 1,000 per cent by 2050 just to meet the Paris goals. Ironically, the mining, transportation, refining and manufacturing of material inputs to the green energy solution would be powered mainly by fossil fuels (and we’d still have to replace all the machinery and equipment currently running on oil and gas with their electricity-powered equivalents, also using fossil fuel). In short, even if the energy transition were occurring as advertised, it would not necessarily be reflected in declining CO2 emissions.
>If we divide 2018 into energy segments, oil, coal and natural gas powered the globe for 309 out of 365 days, hydro and nuclear energy gave us 41 days, and non-hydro renewables (solar panels, wind turbines, biomass) a mere 15 days. If the race is towards a decarbonized finish line by 2050, we’re still pretty much stalled at the gate.
https://www.postcarbon.org/dont-call-me-a-pessimist-on-climate-change-i-am-a-realist/
