What will happen to the Earth after the temperature rises above 1.5 ?

Tech 2023-06-14 09:49:04 Source: Network

Today's PerspectiveReporter Zhang Jiaxin from our newspaperNext year today, we may still live in the same house, drive the same car, and do the same work as at this moment. On June 7th, the website of New Scientist reported that in some ways, the Earth may have undergone irreversible changes at that time

Today's Perspective

Reporter Zhang Jiaxin from our newspaper

Next year today, we may still live in the same house, drive the same car, and do the same work as at this moment. On June 7th, the website of New Scientist reported that in some ways, the Earth may have undergone irreversible changes at that time.

Once this threshold is breached, climate change will bring serious consequences to people, or lead to more unpredictable and extreme heat waves, droughts, wildfires, rainstorm... Especially for regions where the temperature rises above the global average, climate change is vital.

Ice sheet melting

According to a report on the website of New Scientist, climate change has caused the formation of winter sea ice to occur later and the rupture time to occur earlier, which has disrupted local residents' customs such as hunting, fishing, and ice activities.

Throughout the Arctic region, climate change is having a profound impact on traditional culture and community well-being. For hundreds of years, people have relied on cold and snow in culture, language, knowledge sharing, links with land and resources, food security and other aspects, which is conducive to the formation of a profound identity.

Scientists estimate that as the ice sheet melts, rainfall in Central America, Australia, Indonesia, and the Amazon region will decrease. According to a study published in the journal Nature Climate Change in 2021, over 75% of tropical rainforests have gradually lost their "resilience" since the 21st century, which means they are difficult to recover from the effects of wildfires, droughts, and other factors. If the tropical rainforest exceeds the critical point, the ecosystem may rapidly transform into vast tropical savannahs, releasing tens of billions of tons of carbon dioxide during the transformation process.

sea level rise

The current sea level rise has had a devastating impact on low-lying areas. The experience of Vanuatu, a tropical island country in the South Pacific, is enough to give people a glimpse of the serious consequences of rising sea levels.

In 2015, Category 5 Hurricane Pam hit Vanuatu, bringing gusts of over 300 kilometers per hour and tides of 4 meters high. The hurricane swept through villages and destroyed local homes, damaging 90% of the country's food crops. Following closely is a severe drought that has lasted for several months, further exacerbating the shortage of food and water resources.

The meteorological and geological disaster department of the country stated that seawater has polluted freshwater wells, affected water sources on the islands, and damaged infrastructure. In December 2022, Vanuatu announced plans to relocate dozens of villages within the next two years. Climate migration of population may be the norm in the country.

More and more countries are realizing that climate change not only leads to rising sea levels, but also threatens food security. For the UK, 20% of its fruit and vegetable imports come from countries where climate change poses a significant risk to crop yields.

Coral bleaching

In Australia, 80% of the Great Barrier Reef has suffered severe bleaching due to rising ocean temperatures.

Excessive water temperature can cause corals to expel colored algae that live in their tissues and turn white. Corals are fixed animals that "take root" at the bottom of the sea, and although they can survive bleaching events, this can hinder their growth and affect reproduction.

The The Times of Israel reported that since 2021, the Abu Dhabi Environment Agency (EAD) has been working to restore coral. At that time, the coral reefs off the coast faced the second bleaching event in just five years. Recently, local marine scientists are attempting to use coral nurseries to help restore coral reefs that have died in the warming ocean.

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