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28 cze 2021 · The natural heat-trapping gases in our atmosphere, which include carbon dioxide (CO2), methane and nitrous oxide, are necessary to keep the Earth's surface temperature warm.
4 maj 2010 · If Earth has warmed and cooled throughout history, what makes scientists think that humans are causing global warming now? The first piece of evidence that the warming over the past few decades isn’t part of a natural cycle is how fast the change is happening.
21 lip 2020 · But paleoclimatologists have also made great strides in understanding the processes that drove climate change in Earth’s past. Here’s a primer on 10 ways climate varies naturally, and how each compares with what’s happening now.
6 lis 2021 · Is climate change a part of the planet’s natural warming and cooling cycles? How do we know global warming is not because of the sun or volcanoes?
14 sie 2013 · The terrestrial biosphere is a key component of the global carbon cycle and its carbon balance is strongly influenced by climate. Continuing environmental changes are thought to increase...
9 sie 2021 · The report provides new estimates of the chances of crossing the global warming level of 1.5°C in the next decades, and finds that unless there are immediate, rapid and large-scale reductions in greenhouse gas emissions, limiting warming to close to 1.5°C or even 2°C will be beyond reach.
Scientific information taken from natural sources (such as ice cores, rocks, and tree rings) and from modern equipment (like satellites and instruments) all show the signs of a changing climate. From global temperature rise to melting ice sheets, the evidence of a warming planet abounds.
