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Home / World / Climate Change: Where we are in seven diagrams and what you can do to help

Climate Change: Where we are in seven diagrams and what you can do to help



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Representatives from nearly 200 countries gather in Poland for talks on climate change – with the aim of breathing new life into the Paris Agreement.

The United Nations has warned The 201

5 Paris Agreement's goal of limiting global warming to "well below 2 ° C above pre-industrial levels" is in jeopardy as major economies, including the US and the EU, use their Do not fulfill promises.

Intergovernmental Panel Scientists The Climate Change Summit (IPCC), the leading international body for global warming, argued last month that 2C's Parisian pledge had not gone far enough. The global average temperature rise should actually be kept below 1.5 ° C.

How warm is the world and what can we do about it?

. 1 The world has become hotter year by year

According to the World Meteorological Organization (WMO), the world is now almost one degree warmer than before its widespread industrialization.

The global average temperature for the first 10 months of 2018 was 0.98 ° C above the levels of 1850-1900, according to five independently held global datasets.

The 20 warmest years in the past were in the last 22 years, with the first four in 2015-2018 according to the WMO.

If this trend continues, temperatures can rise by 21 ° C to 2100

One degree may not sound like much, but according to the IPCC, if countries do not trade, the world will be in catastrophic transformation – sea levels will be birds ocean temperatures and acidity will increase, and our ability to grow crops such as rice, corn and wheat would be in danger.

  • What is in the Paris Climate Agreement?
  • Last call to stop the climate disaster & # 39;

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2. The year 2018 set all possible records

This year, record temperatures were reached in many parts of the world in an unusually long period of hot weather.

In many parts of the northern hemisphere, a series of heat waves took place in Europe, Asia, North America and North Africa – a result of strong high-pressure systems that created a "heat dome".

During the period shown on the map below (May to July 2018), the yellow dots where a heat record was located were broken on a particular date, pink indicates that these were the hottest locations they've ever had in the month shown, and Dark Red represents a place that has been the hottest since records began.

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There is concern that such hot and cold weather fronts are more likely to be blocked due to climate change and lead to extreme weather events.

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3. We are not well on our way to meeting climate change targets

If we summarized all the emission reduction commitments of the countries that signed the Paris Climate Agreement, by the end of this century the world would warm by more than 3 ° C ,

  Chart showing average warming by 2100

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Over the last three years, climate scientists have shifted the definition of what they believe is the "safe" limit of climate change.

For decades Researchers argued that by the end of this century, global temperature rise must be kept below 2 ° C to avoid the worst effects.

The countries that have joined the Paris Agreement have committed to keep temperatures "well below 2C above pre-industrial levels and make efforts to further limit the temperature rise to 1.5C."

Now scientists agree that we really need to keep the temperature below 1.5 ° C.

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4. The largest emitters are China and the US

The countries that emit the most greenhouse gases by far are China and the USA. Together, they account for more than 60% of the world total, according to 2017 data from the European Commission's Joint Research Center and the PBL Netherlands Environmental Assessment Agency.

  Diagram showing the world's leading greenhouse gas emitters

  Presentational white space [19659047] US environmental policy has shifted under the Trump government, which is pursuing a pro-fossil fuel agenda. </p>
<p>  Upon taking office, President Donald Trump announced that the US would withdraw from the Paris Agreement on Climate Change. </p>
<p>  At the time Trump said he wanted to negotiate a new "fair" deal that would not penalize American businesses and workers. </p>
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5. Urban areas are at particular risk

Nearly all (95%) of cities exposed to extreme climate risks are located in Africa or Asia, according to risk analyst Verisk Maplecroft.

And they are the fastest-growing cities at greatest risk, including megacities like Lagos in Nigeria and Kinshasa in the Democratic Republic of the Congo.

84 of the world's fastest growing cities are facing "extreme" risks of rising temperatures and extreme weather due to climate change.

  Diagram showing how fast growing cities will be affected by climate change

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6. The Arctic sea ice is also in danger

The extent of the Arctic sea ice has decreased in recent years. It reached its lowest level to date in 2012.

  In 1980, the minimum sea ice extent was 7.7 million square kilometers. This year it was at 4.7 million square kilometers. 2012 was the lowest record year, when it fell to 3.6 million square kilometers - less than half of 1980.

The sea ice has been decreasing and melting for decades According to the Environmental Review Committee of the British Parliament, the Arctic Sea has already dropped in summer ice-free in the 2050s if emissions are not lowered.

The extent of Arctic sea ice was much lower than normal in 2018, with the maximum in March being the third lowest and the September minimum the sixth lowest.

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7. We can all do more to help

While governments need to make big changes, individuals can also play a role.

Scientists believe that we must all change our lifestyle "rapidly, widely and unprecedentedly" so as not to damage climate change.

The IPCC demands that we buy less meat, milk and cheese and butter; eat more seasonal local food – and throw less away; Driving electric cars but walking short distances or cycling; Take trains and buses instead of planes; Use video conferencing instead of business travel. Use a clothes line instead of a tumble dryer. Isolate houses; demand low CO2 emissions in every consumer product.

The only way to reduce the environmental burden on Earth is to change your diet to include less meat.

  Greenhouse Gas Emissions Chart of Certain Food Types "src =" https://ichef.bbci.co.uk/news/320/cpsprodpb/BC74/production/_104544284_climate_change_v3-nc.png "width =" 2666 "height =" 1875

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Scientists say we should eat less meat because of the carbon emissions caused by the meat industry and other negative impacts on the environment.

A recent study published in the journal Science showed a massive change in the environmental impact of producing the same food.

For example, cattle raised on cleared land produce 12 times more greenhouse gas emissions than pastures.

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The analysis shows that meat with the least impact on the environment still produces more greenhouse gas emissions than the most environmentally friendly crops.

In addition to changing our diets, research suggests that agricultural practices are changing significantly need to promote the environment.

By Nassos Stylianou, Clara Guibourg, Daniel Dunford and Lucy Rodgers [19659087]
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