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Mountains in the Arctic in 2012: The region can expect an ice-free summer “at least once before 2050”, under even the most optimistic scenarios described in the latest IPCC report (image credit: duncan c , CC BY-NC 2.0
But it nevertheless delivers a very straightforward conclusion: achieving net zero emissions right across the planet as soon as possible and ideally before 2050 is the only pathway forward for humanity if the worst climate impacts are to be avoided.
Landmark IPCC report provides wave of stark warnings, but stresses that rapidly putting the global economy on course to net zero emissions by 2050 could hugely reduce the escalating impacts that will result from a warmer world. Some of these impacts are now thought to be irreversible within timespans stretching to thousands of years.
Taking immediate action to slash emissions towards net zero by 2050 could make a monumental difference to the level, frequency, and breadth of growing climate impacts, the scientists emphasise. C we are still facing half a metre of sealevelrise. C, we can avoid a long term three metres of sealevelrise.
These indicators, including but not limited to carbon dioxide, methane, oceanacidification, tropical forest loss, population, GDP, water use, and transportation, have reached the point past natural variation, showing indisputably that the Earth is in a different state than before. .
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