SUBSCRIBE TO OUR FREE NEWSLETTER
Daily news & progressive opinion—funded by the people, not the corporations—delivered straight to your inbox.
5
#000000
#FFFFFF
5
#000000
#FFFFFF
For Immediate Release
September, 27 2013, 06:40am EDT
Contact:
IPCC Press Office, Email:,ipcc-media@wmo.int,Jonathan Lynn, + 41 22 730 8066 or Werani Zabula, + 41 22 730 8120,IPCC Working Group I Media Contact, Email:,media@ipcc.unibe.ch,Pauline Midgley, +41 31 631 5620
Human Influence on Climate Clear, IPCC Report Says
STOCKHOLM
Human influence on the climate system is clear. This is evident in most regions of the globe, a new assessment by the Intergovernmental Panel on Climate Change (IPCC) concludes.
It is extremely likely that human influence has been the dominant cause of the observed warming since the mid-20th century. The evidence for this has grown, thanks to more and better observations, an improved understanding of the climate system response and improved climate models.
Warming in the climate system is unequivocal and since 1950 many changes have been observed throughout the climate system that are unprecedented over decades to millennia. Each of the last three decades has been successively warmer at the Earth's surface than any preceding decade since 1850, reports the Summary for Policymakers of the IPCC Working Group I assessment report, Climate Change 2013: the Physical Science Basis, approved on Friday by member governments of the IPCC in Stockholm, Sweden.
"Observations of changes in the climate system are based on multiple lines of independent evidence. Our assessment of the science finds that the atmosphere and ocean have warmed, the amount of snow and ice has diminished, the global mean sea level has risen and the concentrations of greenhouse gases have increased," said Qin Dahe, Co-Chair of IPCC Working Group I.
Thomas Stocker, the other Co-Chair of Working Group I said: "Continued emissions of greenhouse gases will cause further warming and changes in all components of the climate system. Limiting climate change will require substantial and sustained reductions of greenhouse gas emissions."
"Global surface temperature change for the end of the 21st century is projected to be likely to exceed 1.5degC relative to 1850 to 1900 in all but the lowest scenario considered, and likely to exceed 2degC for the two high scenarios," said Co-Chair Thomas Stocker. "Heat waves are very likely to occur more frequently and last longer. As the Earth warms, we expect to see currently wet regions receiving more rainfall, and dry regions receiving less, although there will be exceptions," he added.
Projections of climate change are based on a new set of four scenarios of future greenhouse gas concentrations and aerosols, spanning a wide range of possible futures. The Working Group I report assessed global and regional-scale climate change for the early, mid-, and later 21st century.
"As the ocean warms, and glaciers and ice sheets reduce, global mean sea level will continue to rise, but at a faster rate than we have experienced over the past 40 years," said Co-Chair Qin Dahe. The report finds with high confidence that ocean warming dominates the increase in energy stored in the climate system, accounting for more than 90% of the energy accumulated between 1971 and 2010.
Co-Chair Thomas Stocker concluded: "As a result of our past, present and expected future emissions of CO2, we are committed to climate change, and effects will persist for many centuries even if emissions of CO2 stop."
Rajendra Pachauri, Chair of the IPCC, said: "This Working Group I Summary for Policymakers provides important insights into the scientific basis of climate change. It provides a firm foundation for considerations of the impacts of climate change on human and natural systems and ways to meet the challenge of climate change." These are among the aspects assessed in the contributions of Working Group II and Working Group III to be released in March and April 2014. The IPCC Fifth Assessment Report cycle concludes with the publication of its Synthesis Report in October 2014.
"I would like to thank the Co-Chairs of Working Group I and the hundreds of scientists and experts who served as authors and review editors for producing a comprehensive and scientifically robust summary. I also express my thanks to the more than one thousand expert reviewers worldwide for contributing their expertise in preparation of this assessment," said IPCC Chair Pachauri.
The Summary for Policymakers of the Working Group I contribution to the IPCC Fifth Assessment Report (WGI AR5) is available at www.climatechange2013.org or www.ipcc.ch.
Key Findings
See separate Fact Sheet of Headline Statements from the WGI AR5 Summary for Policymakers, available at www.climatechange2013.org.
Background
Working Group I is co-chaired by Qin Dahe of the China Meteorological Administration, Beijing, China, and Thomas Stocker of the University of Bern, Switzerland. The Technical Support Unit of Working Group I is hosted by the University of Bern and funded by the Government of Switzerland.
At the 28th Session of the IPCC held in April 2008, the members of the IPCC decided to prepare a Fifth Assessment Report (AR5). A Scoping Meeting was convened in July 2009 to develop the scope and outline of the AR5. The resulting outlines for the three Working Group contributions to the AR5 were approved at the 31st Session of the IPCC in October 2009.
The Summary for Policymakers of the IPCC WGI AR5 was approved at the Twelfth Session of IPCC Working Group I meeting in Stockholm, Sweden, 23 to 26 September 2013 and was released on 27 September.
The Final Draft of the Working Group I report (version distributed to governments on 7 June 2013), including the Technical Summary, 14 chapters and an Atlas of Global and Regional Climate Projections, will be released online in unedited form on Monday 30 September. Following copy- editing, layout, final checks for errors, and adjustments for changes in the Summary for Policymakers, the full report of Working Group I will be published online in January 2014 and in book form by Cambridge University Press a few months later.
The Working Group I assessment comprises some 2,500 pages of text and draws on millions of observations and over 2 million gigabytes of numerical data from climate model simulations. Over 9,200 scientific publications are cited, more than three quarters of which have been published since the last IPCC assessment in 2007.
In this IPCC assessment report, specific terms are used to indicate the assessed likelihood of an outcome or a result. For those terms used above: virtually certain means 99-100% probability, extremely likely: 95-100%, very likely: 90-100%, likely: 66-100%. For more information see the
IPCC uncertainty guidance note: https://www.ipcc-wg1.unibe.ch/guidancepaper/ar5_uncertainty- guidance-note.pdf
The Intergovernmental Panel on Climate Change is an intergovernmental body of the United Nations. Its job is to advance scientific knowledge about climate change caused by human activities. The World Meteorological Organization and the United Nations Environment Programme established the IPCC in 1988.
LATEST NEWS
Israel Agrees to Cease-Fire With Lebanon's Hezbollah—But What About Gaza?
"It has long been clear that a cease-fire in Gaza is crucial to sustain any lasting cessation of hostilities across the region," said one group.
Nov 26, 2024
Peace advocates on Tuesday cautiously celebrated Israel agreeing to a cease-fire with the Lebanese political and paramilitary group Hezbollah while also stressing the need for an immediate end to the Israeli assault on the Gaza Strip.
Despite concerns about whether the truce will actually happen, the Friends Committee on National Legislation (FCNL), a U.S.-based Quaker group, welcomed the plans for it and called on "all parties to ensure this agreement is swiftly enacted."
"The time for peace is now—not just in Lebanon, but in Gaza and across the region," FCNL declared on social media. "We urge U.S. officials to ensure this agreement brings an immediate end to the Israeli government's devastating and indiscriminate bombing and attacks against Lebanese civilians, which have been fueled by U.S. weapons."
Israeli Prime Minister Benjamin Netanyahu's office announced that the National Security Cabinet approved the cease-fire in Lebanon with a 10-1 vote—only far-right National Security Minister Itamar Ben-Gvir voted no. The office added that "Israel appreciates the U.S. contribution to the process, and reserves the right to act against any threat to its security."
Netanyahu said in a speech to Israelis that "the length of the cease-fire depends on what happens in Lebanon. With the United States' full understanding, we maintain full freedom of military action. If Hezbollah violates the agreement and tries to arm itself, we will attack. If it tries to rebuild terrorist infrastructure near the border, we will attack. If it launches a rocket, if it digs a tunnel, if it brings in a truck carrying rockets, we will attack."
Speaking from the White House Rose Garden, outgoing U.S. President Joe Biden said that he worked with French President Emmanuel Macron to negotiate the cease-fire, which is set to begin at 4:00 am local time on Wednesday. The United States has spent at least tens of billions on Israeli military operations and related U.S. operations in the region since the Gaza-based Palestinian group Hamas led the October 7, 2023 attack on southern Israel.
"As Biden spoke tonight, Israel was raining U.S. bombs down on Lebanon and Gaza," notedDrop Site journalist Jeremy Scahill.
Lebanese Prime Minister Najib Mikati on Tuesday thanked France and the United States for negotiating the truce, which he said is "a fundamental step towards establishing calm and stability in Lebanon" and "helps to establish regional stability." He also reiterated his government's intention to "strengthen the army's presence in the south."
Cross-border battles between Israeli forces and Hezbollah over the past nearly 14 months have displaced tens of thousands of people in Israel and over 1 million in Lebanon. The Lebanese Ministry of Public Health said Tuesday that Israel's assault—which has intensified since September—has killed at least 3,823 people and injured another 15,859.
In Gaza, the death toll is at least 44,249, with 104,746 wounded, according to local officials. Israeli forces have also decimated civilian infrastructure and displaced most of the enclave's 2.3 million residents, who are struggling to access necessities, due to limits on aid. Israel faces a genocide case at the International Court of Justice and the International Criminal Court last week issued arrest warrants for Netanyahu, former Israel Defense Minister Yoav Gallant, and a Hamas leader.
"It has long been clear that a cease-fire in Gaza is crucial to sustain any lasting cessation of hostilities across the region," said FCNL. "More violence and suffering in Gaza will not make Israel, the U.S., or anyone safer or more secure. It must end now. We reiterate our calls for our government to use all U.S. leverage to bring about a full regional cease-fire to end the horrific suffering of Palestinians, protect all civilians, return all hostages home, de-escalate regional tensions, and begin the long road toward healing."
"That must include prohibiting more offensive weapons shipments and U.S. military involvement, which would send a message of impunity to the Israeli [government] in the face of repeated and grave violations of U.S. and international law in Gaza, Lebanon, the West Bank, and beyond," the group added—just days after a bipartisan majority of the U.S. Senate rejected a trio of resolutions from Sen. Bernie Sanders (I-Vt.) that would have halted some arms sales to Israel.
Nancy Okail, president and CEO of the U.S.-based Center for International Policy, responded similarly to the Tuesday development, saying in a statement that "we welcome news of a cease-fire agreement in Lebanon and hope that it can be implemented and sustained to prevent further harm to civilians who have been under threat of attack or suffered other great loss during the fighting."
"This agreement nonetheless comes too late. While Israel has the right to legitimate self-defense against Hezbollah, the Netanyahu government's deliberate escalation of the conflict in September resulted in disproportionate harm to civilians, hundreds of whom have been wounded or killed, with hundreds of thousands more displaced," Okail said. "Mixed messages and prevaricating by the Biden administration on its position on Israel's escalation and the need for a cease-fire [have] further prolonged the fighting and exacerbated the death and destruction it has brought."
"The U.S. and its partners must ensure that the terms of this agreement are fully honored so that civilians on both sides of the border can safely return to and rebuild their communities," she added. "What remains of the utmost urgency, however, is also ending the war in Gaza, where the U.S. arming of the Netanyahu government's campaign of displacement, starvation, slaughter and—per the repeated vows of senior Israeli officials—settlement continues in violation of American and international law."
Keep ReadingShow Less
Democrats Call On Biden to Limit Marijuana Prosecutions Before End of Term
"Rescheduling marijuana and the prior round of pardons must not be the end of this administration's historic work," wrote the lawmakers.
Nov 26, 2024
Democratic lawmakers on Monday urged U.S. President Joe Biden to ensure that his administration's "historic work... to undo the damage of federal marijuana policy" would not end with the steps already taken over the past three years, calling on the president to "deprioritize" marijuana prosecutions before his term ends in January.
Led by Rep. Barbara Lee (D-Calif.) and Sen. Elizabeth Warren (D-Mass.), 14 members of the Democratic caucus applauded Biden for issuing a directive earlier this year that led health regulators to recommend marijuana be classified as a Schedule III substance under the Controlled Substances Act. For decades it has been classified as a Schedule I drug, considered to have no medical use and high potential for abuse.
The lawmakers urged the Drug Enforcement Administration (DEA) "to complete that process as soon as possible," but stressed that doing so would "not end federal criminalization, resolve its harms, or meaningfully address the gap between federal and state cannabis policy. Possession and use of recreational marijuana—and much state-legal medical marijuana—will continue to be a violation of federal law."
What would help to end criminalization at the federal level, said the lawmakers, is "a memorandum that would deprioritize seizing marijuana and prosecuting individuals and businesses for state-legal marijuana activity."
The DEA persists in carrying out major raids and seizures of marijuana plants and businesses, wrote the lawmakers—including Sen. Bernie Sanders (I-Vt.) and Reps. Ilhan Omar (D-Minn.) and Earl Blumenauer (D-Ore.). They pointed to raids carried out this year in New Mexico in which state police destroyed tens of thousands of pounds of "state-legal" marijuana plants.
"The Biden administration has the opportunity to further reduce the harms of marijuana's criminalization before the end of this administration."
"We urge you to issue a memorandum that would deprioritize seizing marijuana and prosecuting individuals and businesses for state-legal marijuana activity," reads the letter. "Today, federal sentences for marijuana possession are rare, with only 13 individuals sentenced for simple marijuana possession in 2023, compared to over 2,000 in 2015. Still, the threat of a federal conviction persists."
A memorandum from the Biden administration should also direct federal law enforcement to "deprioritize prosecutions of any future marijuana offenses that have been the basis of prior federal pardons, and deprioritize prosecutions of personal cannabis activities and cannabis activities that comply with state or tribal law," the lawmakers wrote.
Biden has been applauded for issuing pardons and commutations for people convicted of marijuana-related offenses, but the lawmakers noted that at least 3,000 people remain in federal prisons for such convictions.
"The Biden administration has the opportunity to further reduce the harms of marijuana's criminalization before the end of this administration by issuing another round of clemency and an updated memorandum on prosecutorial discretion for marijuana offenses," said the lawmakers.
President-elect Donald Trump's nominations for top government positions indicate potential mixed stances on marijuana policy in the incoming administration. His attorney general nominee, former Florida Attorney General Pam Bondi, opposed an amendment to legalize medical marijuana in the state, and Food and Drug Administration commissioner nominee Marty Makary has called marijuana a "gateway drug."
Robert F. Kennedy Jr., whom Trump has nominated to lead the Health and Human Services Department, has expressed support for medical marijuana legalization.
The lawmakers on Monday urged Biden not to leave major decision-making on cannabis policy up to Trump.
"Rescheduling marijuana and the prior round of pardons must not be the end of this administration's historic work to use its executive authority to undo the damage of federal marijuana policy," they wrote. "As we continue to work toward legislation to end the federal criminalization of marijuana and to regulate it responsibly and equitably, we urge prompt administrative action to tackle the harms of criminalization—particularly for the benefit of communities most harmed by the War on Drugs."
Keep ReadingShow Less
Mexico's Leftist President Rips Trump Tariff Threat
"If even a small percentage of what the United States allocates to war were instead dedicated to building peace and fostering development, it would address the underlying causes of human mobility," wrote Mexican President Claudia Sheinbaum.
Nov 26, 2024
Mexican President Claudia Sheinbaum on Tuesday sharply criticized U.S. President-elect Donald Trump's threat to impose a 25% tariff on all imported goods from Canada and Mexico, calling the proposal a potentially disastrous distraction from meaningful solutions to drug trafficking and mass migration.
"Migration and drug consumption in the United States cannot be addressed through threats or tariffs," Sheinbaum, a member of Mexico's leftist Morena party, wrote in a letter to Trump. "What is needed is cooperation and mutual understanding to tackle these significant challenges."
Sheinbaum warned that if Trump follows through with his threat, "there will be a response in kind, until we put at risk our shared enterprises," echoing economists' concerns that such sweeping tariffs could result in higher prices for consumers, job losses, and a damaging trade war. Companies in the U.S. are already signaling that they would use tariffs on imports as a justification to raise consumer prices.
"Among Mexico's main exporters to the United States are General Motors, Stellantis, and Ford Motor Company, which arrived in Mexico 80 years ago," Sheinbaum wrote. "Why impose a tariff that would jeopardize them? Such a measure would be unacceptable and would lead to inflation and job losses in both the United States and Mexico."
"Tragically, it is in our country that lives are lost to the violence resulting from meeting the drug demand in yours."
Sheinbaum's letter to Trump was made public hours after the U.S. president-elect took to his social media platform, Truth Social, to fearmonger about a supposedly "unstoppable" migrant "caravan coming from Mexico."
Trump pledged to "sign all necessary documents to charge Mexico and Canada a 25% Tariff on ALL products coming into the United States" and said such tariffs would remain in place until Mexico and Canada—the nation's largest trading partners—halt the flow of migrants and drugs, particularly fentanyl, into the U.S.
"Both Mexico and Canada have the absolute right and power to easily solve this long simmering problem," Trump wrote. "We hereby demand that they use this power, and until such time that they do, it is time for them to pay a very big price!"
In her response, Sheinbaum wrote that Trump "may not be aware" that Mexico "has developed a comprehensive policy to assist migrants from different parts of the world who cross our territory en route to the southern border of the United States." Sheinbaum noted that the policy helped produce a major decline in migrant encounters at the U.S.-Mexico border over the past year.
"For these reasons, migrant caravans no longer arrive at the border," the Mexican president wrote. "Even so, it is clear that we must work together to create a new labor mobility model that is necessary for your country, as well as address the root causes that compel families to leave their homes out of necessity."
"If even a small percentage of what the United States allocates to war were instead dedicated to building peace and fostering development, it would address the underlying causes of human mobility," she added.
Sheinbaum went on to write that Mexico has "consistently expressed its willingness" to help stop fentanyl and weapons from entering the United States through its southern border.
"You must also be aware of the illegal trafficking of firearms into my country from the United States," she wrote. "Seventy percent of the illegal weapons seized from criminals in Mexico come from your country. We do not produce these weapons, nor do we consume synthetic drugs. Tragically, it is in our country that lives are lost to the violence resulting from meeting the drug demand in yours."
Canadian Prime Minister Justin Trudeau offered a far more vague response to Trump's tariff threat, telling reporters that he had a "good conversation" with the U.S. president-elect following his Truth Social post.
"This is a relationship that we know takes a certain amount of working on, and that's what we'll do," Trudeau said.
Keep ReadingShow Less
Most Popular