How climate change affects our lives
The negative impact of global warming on life has gradually emerged. A climate change report to be released at next month's Belgian conference shows that billions of people will face drinking water shortages within decades.
The document on the effects of global warming, drawn up by the Intergovernmental Panel on Climate Change, is the second in a series of reports to be published this year, with a total of four planned to be published this year. The report was drafted and revised by more than a thousand scientists from dozens of countries, and it had to involve government officials.
Meanwhile, information obtained by the Associated Press from a draft of an international scientific report indicates that thousands of people will lose their homes in floods each year due to rising temperatures and sea levels.
Tropical infectious diseases like malaria will spread. By 2050 polar bears will only be seen in zoos, and their living habits will disappear completely. Pests like fire ants also run rampant.
Food will be plentiful for a while due to the longer growing season in the north. But according to the revised report, billions of people could face famine by 2080.
Recently, EU leaders also said in Brussels that they would significantly reduce greenhouse gas emissions by 2020. The EU plans will be presented to US President George W. Bush and other leaders at a summit in June.
"Climate change is affecting physical and biological systems on every continent," the report said, while a 2001 report by the agency said climate change was affecting only some regions.
"These phenomena are indeed happening, and faster than we thought," said Patricia Romero Lankao of the American Center for Atmospheric Research, one of the authors of the new paper. The draft report states that scientists It is believed that changes in species habits and habitats, acidification of ocean waters, loss of wetlands, fading coral reefs, and increased allergy-causing pollen are all to blame for global warming. For example, the report mentions that North America has experienced ecosystem, social and cultural disruption due to recent extreme weather events, such as hurricanes and wildfires. However, this pales in comparison to what might happen in the future.
Ramolo Lankao said that global warming will soon affect everyone's life, and poorer places will be affected more. "We're on the brink of extinction," said Stanford University's Terry Root, co-author of the report.
The report states that global warming will have the following consequences:
-- Hundreds of millions of Africans and tens of millions of Latin Americans will face drinking water shortages in less than 20 years. By 2050, more than one billion people in Asia will face water shortages. Water shortages could threaten between 1.1 billion and 3.2 billion people by 2080, depending on the amount of greenhouse gases emitted by cars and industry.
- By 2030, the death rate of the poor due to global warming will increase. Increased incidence of malaria and dengue fever, as well as diseases caused by the consumption of contaminated seafood.
——By 2050, small glaciers in Europe will disappear, and large land glaciers will shrink significantly. More than half of Europe's plant species will be endangered by 2100.
- By 2080, the number of people suffering from famine due to global warming will be 200-600 million.
- By 2080, as sea levels rise, about 100 million people will be affected by floods every year.
——The smog phenomenon in American cities will be serious. Ozone pollution due to climate change will increase by 4.5% by mid-century compared to the 1990s, making health problems worse.
- Wild polar bears and other animals will disappear.
- There will be more food initially, for example, in the first few decades, the production of soybeans and rice in Latin America will increase. Outside the tropics, especially in northern latitudes, longer vegetative seasons and more lush forests will emerge.
On the one hand, climate change will have positive effects on forests, agriculture and transportation in polar regions, but on the other hand, harm is more likely to occur in marine and coastal ecosystems. The areas most affected by global warming will be Africa, Asia, some small islands and some areas near the poles. North America, Europe and Australia are expected to be least affected. "Most parts of the world and most people's lifestyles will be altered by climate change," the draft report reads.
This report focuses on how global warming will affect our planet and our lives. Andrew Weaver, a climate scientist at the University of Victoria, said: "That's what the story is all about. It's how climate change affects people. Science is one thing, it's how climate change affects you, me and him."
Many -- but not all -- of these effects could be prevented, the report says, if our generation can reduce carbon dioxide emissions, if greenhouse gas levels can be stabilized, and if these can be achieved, the report says, Major impacts on welfare can be avoided, but impacts on ecosystems are likely to occur.” (Wang Hao)