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General Studies 3 >> Enivornment & Ecology

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COP27

                     

 

COP 27

Source: Hindu
 
 
 
Introduction:
  • Earth may have passed through five dangerous tipping points due to the 1.10 C of global heating caused by humanity to date.
  • Technology became a survival strategy for human species, but the degree of techno-determinism that exists in the strategy to reverse climate change is alarming.
  • Technology is unprepared to deal with the challenge, which requires a societal overhaul & a zero emission strategy.
Technical Optimism:
  • COP26 at Glasgow fuelled technological optimism.
  • There was an observation that every technological solution discussed at COP26 depends on three resources: nelectricity(non-emitting electricity generated by hydropower), carbon capture & storage(CCS) or biomass.
  • The total demand for those resources required by the plans discussed at COP26 cannot be met by 2050.
  • Currently there is 4kWh/day of nelectricity but COP26 plans require 32; 6Kg of CCS per person per year is available now but COP26 requiure 3,600.
  • A person consumes 100kg/per year of plant based food, but producing enough bio-kerosene to fly at today's levels requires 200kg of additional harvest.
  • There is no possibility that the supplies of these will be near the levels required by the plans discussed at COP26.
  • A recent study reported that the world would need a nuclear plant's worth of clean-energy capacity everyday between 2000 & 2050 to avoid catastrophic climate change.
  • MIT technology reported that at the given rate, the world will take nearly 400years to transform the energy system.
  • Tech-centric mitigation conversations leave forest economies  which are the best carbon removal instruments, to the ideological fringes of climate conservation.
  • Climate action requires the same amount of investment in conservation as in shiny new technology transfers.
  • While there was the deforestation ending climate commitment at COP26, the nature of the pledge was vague.
  • Countries may attempt to achieve their 'net zero deforestation goals' through monocluture farming.
  • The climate crisis is intertwined with other complex issues which means that it must be insisted on multi-pronged, interconnected climate solutions.
  • Forests which are home to 80% of terrestrial wildlife, are at intersection of climate change.
  • Forests absorb a net 7.6 billion metric tonnes of carbondioxide a year. A new study found that their biophysical aspects have a tendency to cool the earth by an additional 0.5%.
  • The conservation of forests can provide upto 37% of the emissions reduction needed to tackle climate change.
  • The green infrastructures-salt marshes & mangroves are 2-5 times cheaper than grey infrastructure-breakwaters.
  • The annual gross carbon emissions from tropical tree cover loss between 2015-17 was equivalent to 4.8 billion tonnes.
  • This causes more emissions each year than 85 million cars do in their life time.
  • Nearly 34% of total net anthropogenic green house gas emissions came from the energy supply sector, 24% from industry, 22% from agriculture, forestry, 15% from transport & 6% from buildings.
Conserving Natural Sinks:
  • The IPCC land report estimates that land serves as a large carbondioxide sink.
  • There is a growing body of evidence that a large proportion of the required removals could be achieved by conserving-natural sinks, improving biodiversity protection & restoring ecosystems.
Preserving earth's cyclical processes by protecting terrestrial ecosystems, natural sinks & transformative agricultural practices is far more equitable & cost-effective way of tackling the climate crisis than it is being done.
Epilogue:
Technology can assist us, not lead us, on the pathway to a sustainable, regenerative & equitable world.

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