In Starkest Warning Yet, IPCC Calls on Politicians To Rapidly Transition to Renewables to Avoid Climate Disaster

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In its starkest warning yet about the challenges facing humanity, the Intergovernmental Panel on Climate Change said Sunday humans are responsible for all of the planetโ€™s warming sinceย 1951.

The Fifth Assessment Report by the Intergovernmental Panel on Climate Change includes a strict carbon budget for governments for the first time. More than two-thirds of that carbon budget has already been used up and at current rates the world would burn through the rest in less than 30 years, the panelย warned.

โ€œWith this latest report, science has spoken yet again and with much more clarity. Time is not on our side,โ€ said UN Secretary-General Ban Ki-moon. โ€œLeaders mustย act.โ€

For the best chance of avoiding severe levels of warming, governments will need to peak emissions, rapidly phase fossil fuels down to zero and transition to 100 per cent renewable energy, the reportย said.

This transition is not only possible, but economically viable, according to the IPCC. Since 2007, clean energy costs have dropped dramatically and continuing down a path of investing in renewable energy will be cheaper than paying a growing bill for โ€œsevere, pervasive, and irreversibleย impacts.โ€

The report sets governments a clear choice: โ€œEither put policies in place to achieve this essential shift, or they can spend the rest of their careers dealing with climate disaster after climateย disaster.โ€

โ€œWe have the means to limit climate change,โ€ said R. K. Pachauri, chair of the IPCC. โ€œThe solutions are many and allow for continued economic and human development. All we need is the will to change, which we trust will be motivated by knowledge and an understanding of the science of climateย change.โ€

The media release said the Synthesis Report confirms climate change is being registered around the world and warming of the climate system isย unequivocal.

โ€œOur assessment finds that the atmosphere and oceans have warmed, the amount of snow and ice has diminished, sea level has risen and the concentration of carbon dioxide has increased to a level unprecedented in at least the last 800,000 years,โ€ said Thomas Stocker, Co-Chair of IPCC Working Groupย I.

The Synthesis Report makes a clear case that many risks of a warming world unfairly burden the least developedย countries.

โ€œMany of those most vulnerable to climate change have contributed and contribute little to greenhouse gas emissions,โ€ Pachauri said. โ€œAddressing climate change will not be possible if individual agents advance their own interests independently; it can only be achieved through cooperative responses, including internationalย cooperation.โ€

Still, while climate impacts will be felt the most by poorer countries, the effects of global warming are already being felt here in Northย America.

Overall yields of major crops in North America are expected to decline steeply by 2100 without adequate adaptation. The productivity of California crops are projected to decline between nine and 29 per cent by 2097, with large declines in suitable land for grape and wine production. Meanwhile, corn and wheat production is projected to be negatively impacted in the northeastern and southeastern U.S.

Warm winters in western Canada and the U.S. have increased winter survival of the larvae of bark beetles (also known as mountain pine beetles), helping drive large-scale forest infestations and forest die-off. In British Columbia alone, mountain pine beetle outbreaks have already severely affected over 18 million hectares (44.5 million acres) of pine forests and are continuing toย expand.

Reaction to the IPCCโ€™s latest report was swift andย voluminous.

U.S. Secretary of State John Kerry described the report as another canary in the coalย mine.

โ€œWe canโ€™t prevent a large-scale disaster if we donโ€™t heed this kind of hard science,โ€ Kerry said. โ€œThe longer we are stuck in a debate over ideology and politics, the more the costs of inaction grow and grow. Those who choose to ignore or dispute the science so clearly laid out in this report do so at great risk for all of us and for our kids andย grandkids.โ€

May Boeve, Executive Director of 350.org, said the scientists have done theirย job.

โ€œNow itโ€™s the politiciansโ€™ turn,โ€ Boeve said. โ€œWorld leaders have everything they need to act: clear scientific evidence, a strong economic case, and huge public support. The only thing they lack is theย will.โ€

Merran Smith, director of Clean Energy Canada, said renewable energies are an essential ingredient in the worldโ€™s efforts to tackle climateย change.

โ€œCanada has a strong foundation in clean energy, but weโ€™re only scratching the surface of our potential,โ€ Smith said. โ€œOur governments and companies must take the IPCCโ€™s findings to heart and strengthen their commitment to cleanย energy.โ€

The IPCC report provides governments a roadmap to a new global climate agreement, which is due next December in Paris. Governments are expected to pen a draft agreement this December at the UN climate talks in Lima and follow up with national climate action plans byย March.

Image Credit: Anthony Citrano viaย Flickr

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