Source: NASA-JPL/Caltech
To date, human activities are estimated to have caused about 1,0°C of global warming above pre-industrial levels. Global warming is likely to reach 2030°C between 2050 and 1,5 if it continues to increase at current rates.
Source: NASA's Scientific Visualization Studio. Data provided by Robert B. Schmunk (NASA/GSFC GISS
Most of the global warming to date has been absorbed by the oceans. Over the past 40 years, the top layer of the oceans (up to a depth of 100 meters) has warmed by more than 0,33 degrees Celsius on average.
As a result, the world's seas have become about 30% more acidic.
Source: It's mind-blowing, in summary
Global sea levels have risen by about 20 centimeters in the last century. The rate in the last two decades is almost twice as high as in the previous century and is increasing every year.
Source: (NASA's Scientific Visualization Studio)
For the last 800.000 years, until the middle of the 20th century, CO2 concentrations did not exceed 300 ppm (parts per million). Since the beginning of the industrial revolution, we have increased the concentration of CO2 in the atmosphere by 48%, to a level above 400 ppm.
(NASA – https://climate.nasa.gov/causes/)
There is more carbon dioxide in our atmosphere right now than at any time in human history. The last time the Earth's atmosphere contained this much CO2 was in the Pliocene, about three million years ago, when the sea level was several meters higher and the north and south poles were even 10 degrees Celsius warmer.
(NASA Global Climate Change – https://climate.nasa.gov/climate_resources/7/graphic-carbon-dioxide-hits-new-high/)
The warming from anthropogenic emissions that have already been released into the atmosphere to date will last for centuries to millennia and will continue to cause further long-term changes to the climate system, such as sea level rise, with associated impacts. However, these emissions are very unlikely to cause further warming of more than 0,5°C over the next two to three decades.
Climate models predict significant changes in regional climate characteristics. These changes include: an increase in average temperature in most land and ocean regions, an increase in hot extremes in most populated regions, heavy precipitation in several regions, and the likelihood of drought and precipitation deficits in some regions.
Source: NASA and JPL/Caltech
Experts warn that climate change plays an increasingly important role in the disappearance of species. Namely, they represent the third largest factor in the loss of biodiversity after changes in the use of land and seas, and overexploitation of resources. Coral reefs are particularly vulnerable to extreme warming events. Their surface area could be reduced to only one percent of its current extent with warming above 2 degrees C.
Climate change as a result of global warming can be observed almost everywhere in the world and in many forms.
(BURNT)
Climate change-related risks to health, livelihoods, food security, water supply, human security and economic growth are expected to increase with global warming of 1,5°C and further increase with warming above 2°C.
In December 2019, EU leaders supported the goal that The EU will become climate neutral by 2050.
