Extreme weather events more likely even if climate change is curtailed


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Parched soil in Illinois during the 2012 drought. (Thought Quotient/flickr)
Jenna Ladd | February 22, 2017

A study recently published in the journal Science Advances found that even if global climate change mitigation goals are met, extreme weather events will still occur more frequently in the future.

The United Nations Paris Climate Accord aims to keep global temperatures from increasing more than two degrees Celsius above pre-industrial levels. Even if the global community succeeds, human-induced climate change has already made extreme heatwaves, floods and droughts significantly more common.

Unfortunately, scientists say that the existing emission-reduction pledges by the world’s nations are not enough to keep temperatures from rising above 2 degrees Celsius. The study finds that if temperatures were to rise to 3 degrees hotter than preindustrial levels, North America would see at least a 300 percent increase in extreme weather events, for example.

Dr. Noah Diffenbaugh is a climate scientist at Stanford University and the study’s lead author. He said to the Scientific American, “In addition to not meeting the global temperature target, those commitments also imply substantial increase in the probability of record-setting events. Not only hot events but wet events, and also in other regions of the world, dry events as well.”

The study found that extreme heat records are the most likely to be affected by unabated climate change. Scientists focused primarily on North America, Western Europe and East Asia. They found that hotter-than-ever night time temperatures have been occurring much more frequently in recent years. If the climate warms to the 3 degree threshold, extreme heat events are expected to happen five times more frequently in half of Europe and at least three times more frequently in parts of Eastern Asia.

The study reads, “However, even if cumulative emissions are sufficiently constrained to ensure that global warming is held to 1° to 2°C, many areas are still likely to experience substantial increases in the probability of unprecedented [extreme weather] events.”

An interactive map created by researchers at Carbon Brief allows user to see which past extreme weather events can were cause by anthropogenic climate change and which were not.

On The Radio – United Nations Environment Programme seeks to tackle air pollution


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The United Nations warned of the many human health impacts pollution poses. (United Nations/flickr)
Jenna Ladd | December 11, 2017

This week’s On The Radio segment discusses how the United Nations released an anthology with suggested methods for reducing pollution worldwide. 

Transcript: As global pollution increases, action is needed now more than ever. 

This is the Iowa Environmental Focus. 

United Nations Environment Programme recently released The Executive Director’s Report: Towards A Pollution-Free Planet, an anthology that pulls environmental data from every continent and suggests general methods for reducing pollution globally. 

The report suggests that nobody is free from the effects of global pollution. Around one in four deaths globally are caused by environmental degradation, and governments must take action to reduce pollution in all its forms if they want to reduce the negative side effects of a damaged environment. 

Every aspect of global environmental damage must be examined and monitored, from waste disposal to the burning of fossil fuels. The people most effected by pollution are working class laborers in cities, since around 80% of big cities internationally do not meet the UN standards for clean air. 

Children, elderly and other vulnerable populations are disproportionately affected by air pollution. 

The statistics are sobering, but the report suggests that with better government control and a serious approach to pollution, we can all work together to better the environment and our health. 

For more information, visit iowa-environmental-focus-dot-org. 

From the UI Center for Global and Regional Environmental Research, I’m Betsy Stone. 

Germany, Britain pledge $153 million to Amazon anti-deforestation program


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Much of the Amazon rainforest is located in Brazil. (Junaidrao/flickr)
Jenna Ladd | November 15, 2017

Germany and Great Britain have significantly increased their financial support to curb deforestation and expand environmental protection programs in Brazil.

Germany and Great Britain announced their pledges of $81 million and $72 million, respectively, to fight deforestation, much of it illegal, in the Amazon rainforest. The rainforest is recognized as a vital region for carbon absorption and a biodiversity hotspot.

Much of the Amazon rainforest is located in Brazil. Some $88 million of the new funds will go to provide financial incentives for landowners in two Brazilian states to maintain forest cover. The new program will also include the state of Mato Grosso, in an effort to curb ramped deforestation making way for the region’s busy soybean and livestock industries, according to a report from Reuters.

Although deforestation of the Amazon in Brazil decreased by 16 percent in the last year, it has not slowed to rates that would allow the country to meet the goals it set as a part of the Paris Climate Agreement.

The two European countries announced their plans to increase financial support on Tuesday at the United Nations climate change summit taking place in Bonn, Germany.

Climate change endangers World Heritage Sites


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Elephant populations at one Ivory Coast Natural Heritage Site have been replenished. (Guillaume Mignot/flickr)
Jenna Ladd | November 14, 2017

The United Nations Educational, Scientific and Cultural Organization (UNESCO) announced this week at the 23rd Conference of the Parties in Bonn, Germany that climate change now threatens one in four natural heritage sites.

There are a total of 206 Natural World Heritage properties, or sites elected by UNESCO to have “outstanding universal value.” Sixty-two of these sites are now considered to be at risk due to climate change by the organization, up from 35 in 2014.

International Union for Conservation of Nature (IUCN) director general Inger Andersen said in a statement, “Climate change acts fast and is not sparing the finest treasures of our planet. The scale and pace at which it (climate change) is damaging our natural heritage underline the need for urgent and ambitious national commitments and actions to implement the Paris Agreement.”

Coral reefs, wetlands, deltas and glaciated areas are among the most threatened ecosystems. Rising sea temperatures have killed off colorful algae that used to adorn the Aldabra Atoll Reef in the Indian Ocean, the Belize Barrier Reef in the Atlantic, and Australia’s Great Barrier Reef, resulting in a “devastating” bleaching effect. The Everglades are also threatened by climate change as sea level rise brings salt water into the wetland ecosystem.

Although countries are responsible for protecting and managing natural heritage sites within their boarders, the report noted that natural heritage site management has decreased since 2014, mostly due to decreased funding.

Proper management can reduce risk for some threatened sites. The report tells of replenished elephant and chimpanzee populations in Ivory Coast’s Comoé national park due to improved management and international support.

Syria joins climate agreement, U.S. only country not participating


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The 23rd United Nations Conference of the Parties on Climate Change is taking place November 6 through 17 in Bonn, Germany. (Bonn International)
Jenna Ladd | November 8, 2017

Syria recently announced at the international climate conference in Bonn, Germany that it will join the Paris Climate Accord.

Syria’s decision to join the international agreement makes the United States the only country in the world that is not honoring the 2015 climate change mitigation goals. President Trump announced that the U.S. would leave the agreement, which aims to keep global temperatures from rising more than 3.6 degrees Fahrenheit above pre-industrial levels, in June.

Nicaragua was the second-to-last country to ratify the agreement. The central American country initially voiced concerns that the Paris climate agreement did not go far enough to address climate change but decided to join in September.

The Sierra Club published a response to Syria’s joining, “As if it wasn’t already crystal clear, every single other country in the world is moving forward together to tackle the climate crisis, while Donald Trump has isolated the United States on the world stage in an embarrassing and dangerous position.”

Given that the U.S. is the second-largest producer of greenhouse gases, some experts wonder if the international climate goals can be reached without U.S. government support. More than 1,300 U.S Mayors, Governors, State Attorneys, businesses, investors and other prominent climate actors have communicated their continued commitment to the Paris Climate Agreement goals in the We Are Still In movement. The group, which makes up $6.2 trillion of the U.S. economy, will send numerous delegates to the the Conference of the Parties 23 to “show [ing] the world that U.S. leadership on climate change extends well beyond federal policy.”