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Why is future sea level rise still so uncertain?

Real Climate

Three new papers in the last couple of weeks have each made separate claims about whether sea level rise from the loss of ice in West Antarctica is more or less than you might have thought last month and with more or less certainty.

Sea Level 249
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Too extreme to be true? The links between extreme weather and climate change

HumanNature

The increasing greenhouse gases in Earth’s atmosphere are warming the global temperature, shifting precipitation patterns, raising global sea levels, melting glaciers, and more [5]. Zarzycki (2020): Forecasted attribution of the human influence on Hurricane Florence. link] [6] Creel, L. 2003, September 25).

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We Crossed 1.5 C. Did We Breach the Paris Agreement?

Legal Planet

C, stated at the 2009 COP in Copenhagen and adopted one year later – which was also a non-binding goal – would leave many of them inundated by sea level rise. That’s the sea sponge study that made headlines last week. In fact, the 1.5 C of heating, this report focused on comparing climate impacts at 1.5 C to those at 2.0

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Another Historic Climate Court Ruling in the Netherlands

Legal Planet

its district, appellate , and supreme courts decided in favor of Urgenda, an upstart environmental organization, ordering the government to more aggressively reduce greenhouse gas emissions. Environmental Protection Agency (2007) forced the EPA to regulate greenhouse gas emissions. Everyone produces greenhouse gases.

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Antarctic extreme events: ‘All-time records are being shattered not from decades ago, but from the last few years and months’

Frontiers

Writing as part of Frontiers’ guest editorials series, the study’s lead author – Prof Martin Siegert, deputy vice chancellor of the University of Exeter (Cornwall) – discusses how without there being a rapid shift to net-zero greenhouse gas emissions by 2050, the Antarctic environment will experience ever more drastic changes.

Ocean 98
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The Fifth National Climate Assessment: Implications for Agriculture

National Sustainable Agriculture Coalition (NSAC)

On the other hand, the chapter’s assessment of alternative plant proteins is more measured, noting their potential to reduce greenhouse gas emissions but also identifying the clear downsides in terms of increased needs for infrastructure and energy. Sea level rise is also important in the region, causing saltwater intrusion and salinization.

Sea Level 105
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Electric Resilience Toolkit: A Compilation of Resources to Enhance Climate Resilience Planning by Electric Utilities

Law Columbia

In addition to extreme weather, electric utilities and system operators must also prepare for shifts in baseline weather and environmental conditions, such as higher average temperatures and sea levels, when planning and operating the electric grid. Such planning has been endorsed by the U.S. You can access the toolkit here.