Climate Change 2021 Articles PDF

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Climate Change 2021 Articles PDF Details
Climate Change 2021 Articles
PDF Name Climate Change 2021 Articles PDF
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Climate Change 2021 Articles

Dear users, today we are going to provide Climate Change 2021 Articles PDF for all of you. If you are also searching for it and unable to find it anywhere then you have arrived on the right page. Climate is the usual weather of a place. Climate can be different for different seasons.

A place might be mostly warm and dry in the summer. The same place may be cool and wet in the winter. Different places can have different climates. Climate change is also a change in Earth’s climate. This could be a change in Earth’s usual temperature. Or it could be a change in where rain and snow usually fall on Earth.

Climate Change Articles 2021 PDF / Effects of Climate Change Articles 2021

  • “This is a critical year for climate action. This report by the United Nations and global scientific partner organizations provides a holistic assessment of the most recent climate science.
  • The result is an alarming appraisal of just how far off course we are,” said UN Secretary-General Antonio Guterres.
  • Climate Change is the defining issue of our time and we are at a defining moment. From shifting weather patterns that threaten food production to rising sea levels that increase the risk of catastrophic flooding, the impacts of climate change are global in scope and unprecedented in scale.
  • 16 September 2021 (WMO) – COVID-19 did not slow the relentless advance of climate change. There is no sign that we are growing back greener, as carbon dioxide emissions are rapidly recovering after a temporary blip due to the economic slowdown and are nowhere close to reduction targets.
  • Greenhouse gas concentrations in the atmosphere continue at record levels, committing the planet to dangerous future warming, according to a new multi-agency United in Science 2021 report.
  • Rising global temperatures are fuelling devastating extreme weather throughout the world, with spiralling impacts on economies and societies.
  • Billions of work hours have been lost through heat alone. The average global temperature for the past five years was among the highest on record.
  • There is an increasing likelihood that temperatures will temporarily breach the threshold of 1.5° Celsius above the pre-industrial era, in the next five years, the report said.
  • The scale of recent changes across the climate system as a whole is unprecedented over many centuries to many thousands of years.

Human influence on the past and future climate

  • “It has been clear for decades that the Earth’s climate is changing, and the role of human influence on the climate system is undisputed,” said Masson-Delmotte.
  • Yet the new report also reflects major advances in the science of attribution – understanding the role of climate change in intensifying specific weather and climate events such as extreme heat waves and heavy rainfall events.
  • The report also shows that human actions still have the potential to determine the future course of climate.
  • The evidence is clear that carbon dioxide (CO2) is the main driver of climate change, even as other greenhouse gases and air pollutants also affect the climate.

Every region facing increasing changes

Many characteristics of climate change directly depend on the level of global warming, but what people experience is often very different to the global average. For example, warming over land is larger than the global average, and it is more than twice as high in the Arctic.

  • “Climate change is already affecting every region on Earth, in multiple ways.
  • The changes we experience will increase with additional warming,” said IPCC Working Group I Co-Chair Panmao Zhai.

The report projects that in the coming decades’ climate changes will increase in all regions. For 1.5°C of global warming, there will be increased heat waves, longer warm seasons and shorter cold seasons.

At 2°C of global warming, heat extremes would more often reach critical tolerance thresholds for agriculture and health, the report shows. But it is not just about temperature. Climate change is bringing multiple different changes in different regions – which will all increase with further warming.

These include changes to wetness and dryness, winds, snow and ice, coastal areas and oceans. For example:

Climate Change Effects
1. Climate change is intensifying the water cycle. This brings more intense rainfall and associated flooding, as well as more intense drought in many regions.
2. Coastal areas will see continued sea-level rise throughout the 21st century, contributing to more frequent and severe coastal flooding in low-lying areas and coastal erosion. Extreme sea-level events that previously occurred once in 100 years could happen every year by the end of this century.
3. Climate change is affecting rainfall patterns. In high latitudes, precipitation is likely to increase, while it is projected to decrease over large parts of the subtropics. Changes to monsoon precipitation are expected, which will vary by region.
4. Further warming will amplify permafrost thawing, and the loss of seasonal snow cover, melting of glaciers and ice sheets, and loss of summer Arctic sea ice.
5. Changes to the ocean, including warming, more frequent marine heatwaves, ocean acidification, and reduced oxygen levels have been clearly linked to human influence. These changes affect both ocean ecosystems and the people that rely on them, and they will continue throughout at least the rest of this century.
6. For cities, some aspects of climate change may be amplified, including heat (since urban areas are usually warmer than their surroundings), flooding from heavy precipitation events and sea-level rise in coastal cities.

Causes of Climate Change

  • Earth’s atmosphere contains various gases that act as a blanket to trap heat from the sun and prevent it from escaping back into space.
  • This process is known as the greenhouse effect, and the gases are referred to as greenhouse gases. The main greenhouse gases that occur in nature are carbon dioxide, methane, and nitrous oxide.
  • Without the greenhouse effect, the planet would be too cold to support life. Over time, the amount of greenhouse gases trapped in Earth’s atmosphere has increased significantly, causing worldwide temperatures to rise.
  • Natural processes on Earth constantly create and destroy greenhouse gases. The decay of plant and animal matter, for example, produces carbon dioxide, which plants then absorb during photosynthesis.
  • This natural cycle keeps the level of carbon dioxide in the atmosphere fairly stable. Shifts in the planet’s crust and changes in ocean patterns impact weather, as do fluctuations in the sun’s output of radiation.

What is climate change?

Climate is the average weather in a place over many years. Climate change is a shift in those average conditions.

What are the negative impacts of climate change?

The negative impacts of climate change are mounting much faster than scientists predicted less than a decade ago, according to the latest report from a United Nations climate panel.

What Is Causing Earth’s Climate to Change?

Many things can cause the climate to change all on its own. Earth’s distance from the sun can change. The sun can send out more or less energy. Oceans can change. When a volcano erupts, it can change our climate.

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