Impacts Of Global Warming On Humans – Climate change is killing people and making them sick Some organisms are already being irreversibly changed, scientists say. And climate change is harmful to human health.
Portland residents wait at the Oregon Convention Center, which has been converted into an emergency cooling center during the June 2021 heat wave. Hundreds of people have died in the Pacific Northwest due to extreme heat. Caption hidden by Nathan Howard/Getty Images
Impacts Of Global Warming On Humans
Portland residents wait at the Oregon Convention Center, which has been converted into an emergency cooling center during the June 2021 heat wave. Hundreds of people have died in the Pacific Northwest due to extreme heat.
Human Responses To Climate Change Will Likely Determine The Fate Of Biodiversity
Climate change affects billions of people on all continents, says a new UN report published on Monday. Governments must do a better job of protecting vulnerable communities and reducing greenhouse gas emissions quickly.
The report, drawn up by nearly 300 leading scientists from around the world, paints a picture of a world already ravaged by greenhouse gas emissions and conflict on the brink of unsustainable destruction.
“People are dying now because of climate change,” said Kristie Ebi, one of the report’s leaders and an epidemiologist at the University of Washington.
That’s because extreme heat, drought, floods, wildfires, disease outbreaks and other adverse effects of climate change are happening faster than scientists believe in many parts of the world, including North America. And as the oceans, forests and rainforests warmed, the climate slowed and weakened to cope with climate change, according to the report.
Mitigation And Adaptation
However, the authors of the report make it clear, people are not strong. Repairing damaged ecosystems and reducing greenhouse gas emissions quickly and immediately will protect billions of people from disease, poverty, exclusion and death.
Some of the most vulnerable ecosystems are already being altered by climate change, which will significantly affect global warming later this century.
For example, corals were initially used to warming water, but as the oceans have warmed in recent years, reefs have become cramped and many have died. It also applies to polar, mountain, wetlands and forests, where temperatures rise rapidly to allow plants and animals to adapt. Instead, species became extinct or moved to cooler climates.
For example, the forests and tundra of North America and Siberia absorb carbon dioxide from the atmosphere. But the report notes that when these organisms digest and even burn, they absorb and in some cases even release less carbon dioxide.
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That’s why protecting the climate away from populated areas is an important way to protect people’s lives and health, the report states.
Camille Parmesan, one of the report’s lead authors and a researcher at the University of Texas at Austin, said: “We need to keep ecosystems in the best possible shape to absorb carbon.” “Reducing emissions alone is not enough.”
Climate science has made great strides since the last such report was published nearly a decade ago. Scientists can now see the fingerprints of climate change from individual hurricanes, wildfires and heat waves. Thanks to the cooperation, epidemiologists, economists and social scientists can study the effects of global warming on people’s health and well-being.
The result is intuitive. “Climate change is already affecting the physical and mental health of many Americans,” said Sherilee Harper, one of the report’s authors and a researcher at the University of Alberta in Canada.
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For example, climate change is dangerous for pregnant women, the report says for the first time. Forest fire smoke worsens respiratory and heart diseases. And the trauma of living through a natural disaster can lead to long-term mental health issues.
The authors keep coming back to the negative effects of heat waves. All over the world, hot weather kills people and makes them sick.
This is also true in the United States. “Heat is the No. 1 weather-related killer in the US,” says Juan Declet-Barreto of the Association of Stress Researchers. “The effects of extreme heat are not always visible, so people forget about them. But they are very dangerous because of this invisibility.”
Globally, the poor, indigenous peoples and other marginalized groups are most at risk from the heat and the effects of climate change, the report repeatedly states.
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“I think we haven’t done a good job of focusing on the poor and the disadvantaged,” said Ko Barrett, co-chair of the UN’s Intergovernmental Panel on Climate Change and senior climate officer at the US National Oceanic and Atmospheric Administration.
In the United States, the poor and people of color may live and work in large cities with limited green space and higher temperatures than the surrounding area, with negative consequences.
Heat storms are especially dangerous when they hit historically hot regions, such as the Pacific Northwest, where hundreds of people died as a result of last summer’s extreme heat.
Volunteer firefighters rest in Western Yakutsk, Russia, in August 2021. Wildfires are common in Siberia, showing how the region’s vast forests can absorb carbon dioxide from the atmosphere. Ivan Nikiforov/AP hide caption
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Volunteer firefighters rest in Western Yakutsk, Russia, in August 2021. Wildfires are common in Siberia, showing how the region’s vast forests can absorb carbon dioxide from the atmosphere.
Scientists have warned that humans must limit global warming to below 2.7 degrees Celsius (1.5 degrees Celsius) to avoid the effects of climate change. Global temperatures have already risen by about 2 degrees Fahrenheit, or about 1.1 degrees Celsius.
A previous UN report released last summer estimated that there is at least a 50 percent chance that global warming will reach 2.7 degrees Fahrenheit by mid-century. A new report narrows down the situation. For example, there is a big difference between staying in a danger zone for a short time and camping outside permanently.
If the rise in some parts of the globe briefly exceeds 2.7 degrees before returning to mid-century, irreversible changes can still be avoided. Environmental damage can be compensated. Hard water pipes can be replaced.
Global Climate Change And Evolution
But the report says that if humans allow global warming to remain above 2.7 degrees Fahrenheit for decades, the world will change for centuries. Ice sheets and glaciers will not freeze again anytime soon. Creatures do not come back to life.
Halting this warming will require a sharp reduction in greenhouse gas emissions over the next decade, which will require humanity to stop burning fossil fuels in cars, trucks and power plants. According to the report, the United States has been slow to reduce emissions in part because a lack of information about climate change and the politicization of climate science has led to general confusion about the real risks of climate change, global warming.
In response to the report, UN Secretary-General António Guterres doubled down on this message, saying fossils are “dead”.
“Coal and other fossil fuels are harming humanity,” Guterres said. Oil companies, banks and investors are all involved, he said. “Those in the private sector that are still funding coal need to be reckoned with. So are the oil and gas giants – and their publishers – to be reckoned with.” Scientists agree that global warming is caused by human activity. In particular, evidence shows that certain heat-trapping gases, such as carbon dioxide, warm the planet—and we release these gases when we burn fossil fuels such as coal, oil, and natural gas.
Dangers And Risks
As scientific models and methods improve and as we gather more information, our confidence in human-caused climate change only grows. Here’s what we know.
Climate science encompasses many disciplines, from oceanography and meteorology to chemistry, physics, biology and computer science.
In general, scientists working on climate change compare the climate they observe with models developed using advanced global systems (such as the atmosphere and oceans). By comparing observed and simulated events, scientists can better determine the “human fingerprint” and attribute some of the observed warming to human activity.
These fingerprints are found in various writings in nature, the sea, and on the surface of the earth. They include rising levels of carbon dioxide, unprecedented warming, and the unique atomic matter left in the atmosphere when fossil fuels are burned.
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This chart summarizes carbon dioxide levels from about 800,000 years ago. From the 1760s onwards, the Industrial Revolution was credited with considerable development. Taken from data collected by the National Oceanic and Atmospheric Administration and the Scripps Institution of Oceanography.
) is the heat-trapping gas in our atmosphere that is responsible for most of the warming measured in recent years. It is released during the manufacture of cement and the burning of coal, natural gas and oil – something humanity began to do in abundance during the Industrial Revolution and continues to this day.
The world’s climate has increased dramatically over the past 150 years, from a pre-industrial level of about 280 parts per million (ppm) to today’s more than 410 ppm. C/o
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How Climate Change Affects Life On Earth
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