The effects of climate change could be & # 039; irreversible & # 039; No drastic action: scientists.

The effects of climate change could be & # 039; irreversible & # 039; No drastic action: scientists. https://i0.wp.com/www.eresviral.com/wp-content/uploads/2018/10/Los-efectos-del-cambio-climático-podrían-ser-amp-039-irreversibles-amp-039-Sin-acción-drástica-los-científicos.jpg?fit=122%2C146&ssl=1

The effects of climate change could be & # 039; irreversible & # 039; No drastic action: scientists.







Global temperatures could reach an irreversible turning point in only 12 years if the world does not act dramatically to reduce the amount of carbon dioxide emitted into the atmosphere, scientists warned. in a new report.





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The extreme evaluation puts the focus on the president Donald Trump and the Congress controlled by the Republicans. Trump and many of his most fervent supporters in Congress have questioned the fact of being human. climate change and the president could remain in office for almost half the time that scientists say is crucial to the action.



The United Nations panel on climate change says that the impact of climate change can still be reduced if countries around the world take unprecedented measures to reduce the use of fossil fuels and release less carbon dioxide and other greenhouse gases in the air.



But the United States government has not supported aggressive climate policies under the Trump administration.



President Trump decided to withdraw the United States from the Paris Climate Agreement, an agreement where countries committed to drastically reduce greenhouse gas emissions. The current administration has moved to roll back most of the climate-oriented policies proposed by the Obama administration, proposing replacements in some cases that experts say will not go that far to reduce emissions.



The Environmental Protection Agency declined to comment on the findings of the UN report on Monday.



"The United States continues to lead the world in greenhouse gas reductions having reduced our emissions by 14 percent since 2005," an EPA spokesman said in a statement.



Researchers at the UN panel discovered that "man-made" carbon dioxide emissions should be reduced by almost half of 2010 levels by 2030 to avoid the worst effects of climate change. The scientists said that "rapid, far-reaching and unprecedented changes are needed in all aspects of society" to limit the possibility of irreversible environmental damage.



The Trump administration has moved to protect coal producers and other sources of energy such as natural gas, noting that it is a risk to national security to depend only on renewable energy.



Many scientists, however, say that one of the most efficient ways to curb global warming would drastically reduce the use of fossil fuels in the country.



Global temperatures have already risen an average of 1 degree Celsius, approximately 1.8 degrees Fahrenheit, above the levels before the industrial age, according to the researchers. A half degree more of additional heat may not seem significant to the average person.



But it is even predicted that the amount of change will eliminate coral reefs, threaten to melt Antarctic ice sheets that could contribute to sea level rise that will worsen flooding, cause the ocean to become more acidic and affect the crops in some parts of the world.





AP
The risks related to climate for health, livelihoods, food security, water supply, human security and economic growth are expected to increase with global warming.

Michael Mann, a professor of atmospheric science at Penn State University, says that targets to stop warming at 1.5 or 2 degrees Celsius often look like a cliff, but the reality is more like a minefield. Climate models can not predict exactly when the irreversible impacts of climate change could be activated, but we must stop moving in that direction as soon as possible.



"We do not know where these inflection points are, we do not know how much warming causes these effects, so that is another reason to stop this progress," he said.



Mann said that the first thing the US should do UU And other countries is to increase the amount of carbon dioxide emissions from the burning of fossil fuels and accelerate the shift to more renewable energy.



He said we are already feeling the impact of rising temperatures as warmer oceans and rising sea levels contribute to worse storms like hurricanes, but if we continue to release more carbon dioxide and other greenhouse gases that heat up the atmosphere, the storms that we saw this summer only get worse.



"The strongest storms are getting stronger due to the warming of the oceans and will continue to do so," he said.





The Associated Press
ARCHIVE: in this file photo of October 26, 2015, the fish swim over a patch of bleached coral at Kaneohe Bay in Hawaii, off the island of Oahu. The warmer water is repeatedly causing massive global bleaching events on Earth's fragile coral reefs. A science of the United Nations

John Holdren, professor of environmental policy at Harvard's Kennedy School of Government and former scientific advisor to President Barack Obama, said there is no way to limit the warming to 1.5 degrees C without early and aggressive action by all countries.



"This report is very tough in its assertion that climate change is an urgent and potentially irreversible threat to the planet," he said.



Holdren said it is very difficult to take measures to reduce emissions without the federal government, but the good news is the effort of states, cities, universities and private companies to meet the objectives of the Paris Agreement, even without the leadership of the administration. . That coalition, nicknamed "We're still inside," even appeared at United Nations events separately from the official delegation of the United States.



"I'm not optimistic about our ability to keep the increase to 1.5, I think doing what the IPCC report describes as necessary to get to 1.5 would be almost miraculous in today's world, starting with the fact that the government of the The United States is now the only country in the United States. "The world that is not committed to Paris. It's an extraordinarily heavy climb to reach 1.5, "Holdren said.



But Holdren said that despite the specific objective in this report, the effects of climate change will only worsen if temperatures continue to rise, so it is important to take steps to prevent the consequences from worsening.



He said that although it is unlikely that most countries will meet the objectives set forth in the report of the UN panel, the glass is simultaneously half empty and half full because the emissions have generally decreased.



Mann said he is cautiously optimistic about trends to reduce carbon emissions, but we need policies to accelerate that trend and deal with the warming that has already happened, which we do not see in the current administration or the Republican leadership in Congress. .



"The most important thing that Americans can do in the next month would be to vote in the upcoming elections and vote on this climate issue."





ABC News' Karma Allen contributed to this report.

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