What Will Happen Because Of Climate Change

What Will Happen Because Of Climate Change – The effects of human-caused global warming are happening now, are irreversible for humans today, and will worsen as humans add greenhouse gases to the atmosphere.

Potential future impacts of global change include more frequent forest fires, longer droughts in some areas, and increased wind and rainfall intensity from tropical cyclones. Credits: Left – Mike McMillan/USFS, Middle – Tomas Castelazo / Wikimedia Commons / CC BY-SA 4.0, Right – NASA.

What Will Happen Because Of Climate Change

Global change is not a problem of the future. Changes to Earth caused by increased human emissions of heat-trapping greenhouse gases are already having far-reaching effects on the environment: glaciers and ice sheets are shrinking, river and lake ice is breaking up earlier, plant and animal ranges are shifting, and plants and trees they die earlier.

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Effects that scientists have long predicted would result from global change are happening now, such as loss of sea ice, accelerated sea-level rise and longer, more intense heat waves.

“The magnitude and pace of change and associated risks are highly dependent on short-term mitigation and adaptation measures, and projected adverse impacts and associated losses and damages escalate with each increase in global warming.” – Intergovernmental Committee for Change

Some changes (such as droughts, wildfires, and extreme rainfall) are happening faster than scientists previously thought. In fact, according to the Intergovernmental Panel on Change (IPCC)—the United Nations body established to assess the science of change—modern humans have never before seen observable changes in our world, and some of these changes they are irreversible in the next hundreds of thousands of years.

Scientists are deeply convinced that the global temperature will continue to rise for decades to come, mainly due to greenhouse gases produced by human activities.

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Thus, Earth’s average temperature rose by about 2 degrees Fahrenheit during the 20th century. What is the problem?

The IPCC’s Sixth Assessment Report, published in 2021, found that human emissions of heat-trapping gases had already warmed by almost 2 degrees Fahrenheit (1.1 degrees Celsius) from 1850 to 1900.

The global average temperature is expected to reach or exceed 1.5 degrees Celsius (about 3 degrees F) in the coming decades. These changes will affect all regions of the Earth.

The term “global warming” refers to the long-term warming of the planet. “Change” includes global warming, but refers to a wider range of changes occurring on our planet, including sea level rise. reduction of mountain glaciers. accelerating the melting of ice in Greenland, Antarctica and the Arctic. and shifts in flowering time of flowers/plants.

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The severity of the impacts caused by the changes will depend on the course of future human activities. More greenhouse gas emissions will lead to more extreme and widespread adverse effects across our planet. However, these future impacts depend on the total amount of carbon dioxide we emit. So if we can reduce emissions, we could avoid some of the worst impacts.

“The scientific evidence is incontrovertible: change is a threat to human well-being and the health of the planet. Any further delay in coordinated global action will miss a short, rapidly closing window to secure a sustainable future.”2 – Intergovernmental Panel on Climate Change future of the impact of the change in the US

Change brings different kinds of challenges to every region of the country. Some of the current and future impacts are summarized below. These findings are from the Third

People have already caused great change, and we have set in motion more change. However, if we stopped emitting greenhouse gases today, the rise in global temperatures would begin to moderate within a few years. Temperatures would then be high, but they would remain very high for many, many centuries.

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Scientists using space-based radar have discovered that New York’s soil is sinking at different rates due to human and natural factors. Many parts are developed.

The annual minimum (lowest) annual Arctic sea ice extent was the sixth lowest on record this year, while Antarctic sea ice reached its lowest ever maximum. Both continue a long-term downward trend due to human-caused global warming.

The International Surface Water and Ocean Topography Mission can measure ocean features, such as El Niño, closer to the coast than previous space missions.

The instrument will allow the non-profit organization Carbon Mapper to identify and measure the sources of methane and carbon dioxide from space.

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The summer of 2023 was the hottest on Earth since global records began in 1880, according to scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York.

No stranger to hot weather, the region has been experiencing more humid heat waves that are testing the adaptability of its residents. But different areas feel different effects.

According to scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York, July 2023 was the hottest month on record for global temperatures.

If global temperatures reach 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels, people around the world could face multiple impacts of change at once.

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In June 2023, the South American reservoir reached extremely low levels due to ongoing drought and human use. Click to view from space.

Much effort has gone into ensuring that spacecraft such as surface water and ocean topography satellites provide accurate data.

NASA leadership, including experts, will be available at 4 p.m. EDT on Thursday, July 20, at the agency’s headquarters in Washington to shed light on recent extreme weather events and discuss how NASA research and data enable solutions. Climate change is already having visible effects around the world. The earth is warming, rainfall is changing and sea levels are rising. These changes can increase the risk of heat waves, floods, droughts and wildfires.

Climate change affects crop growth and human health, and many people may have to leave their homes. It puts some species at increased risk of extinction. The effects of climate change are real and already happening.

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The level of climate change we see depends on how quickly we reduce our emissions of dangerous greenhouse gases. Even if we stopped all broadcasts today, we wouldn’t prevent some changes. However, the faster we reduce emissions, the smaller the changes will be.

We know that greenhouse gases, aerosol emissions and land use affect our climate. In general, human activity is warming our planet.

Learn more about these and other climate change indicators in the Global Climate Dashboard and Extremes Dashboard.

In a recent report, the Intergovernmental Panel on Climate Change (IPCC) showed the difference between 1.5°C and 2°C of global warming. But if we don’t cut emissions quickly, the world is likely to exceed 2°C of warming. By the end of this century, warming could potentially reach 4°C, perhaps more.

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Climate change will increase the risk of various problems around the world. Although developed countries produce the majority of greenhouse gas emissions, developing countries are expected to see most of the severe impacts. With fewer resources to adapt to these changes, the impact on people in developing countries is expected to be greater.

The average global temperature has risen by more than 1°C since the 1850s. 2015, 2016, 2017, 2018, 2019 and 2020 were the hottest years on record. Our numbers show that the planet is warming since the industrial revolution.

This graph shows the change in global temperature from 1850 to 2022, compared to the estimated baseline average temperature from 1850 to 1900.

A warming planet leads to many other changes in our climate. As the planet warms, heat waves become more likely. In recent years, heat waves have been the world’s deadliest weather hazard.

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The oceans absorb 90% of the additional heat created by human impact. However, when water is heated, it expands and takes up more volume. So when the oceans warm, they also expand, causing sea levels to rise. We also have extra water flowing into the ocean due to melting ice sheets and glaciers. Between 1901 and 2018, the global average sea level rose by about 20 cm.

Some parts of the planet, such as the North and South Poles, are warming faster than other parts. At the poles, glaciers and ice sheets reflect the sun’s energy into space. So when there is less ice, less energy from the sun is reflected. The area then warms even faster, causing even more ice to melt.

The ice in the Arctic is melting fast. It is already 65% ​​thinner than it was in 1975. The area of ​​Arctic sea ice in late summer is currently the smallest in at least 1,000 years. If we don’t reduce emissions soon, we could see ice-free summers in the Arctic by the middle of this century.

When ice and glaciers melt, fresh water flows into the sea. In addition to raising sea levels, freshwater also reduces the salinity (salinity) of water, which can slow or change ocean currents.

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The oceans also absorb about 25% of the carbon dioxide that humans release into the air. The oceans then become less alkaline, a process called “ocean acidification.” Ocean acidification is bad because it can have negative effects on marine organisms, such as corals and plankton, which are an important part of the food chain.

** Marvel et al 2019 provides new evidence of increased drought in some regions during some periods

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