Rising greenhouse gas emission is the primary factor for anthropogenic (human-induced) climate change. The increase in carbon dioxide concentration can trap the radiation into the atmosphere and not let it go into space. This trapping of the extra energy increases the average surface air temperature and warms the climate that we know as global warming.
As the capacity of the atmosphere to absorb the heat is very less, more than 90% of the extra heat that has been trapped in the climate system has been absorbed by the oceans since 1970, according to IPCC AR5, and IPCC AR6 reports. Due to this, oceans are warming globally from the surface to deeper depths. The warming of the oceans has severe consequences such as increasing intensity and frequency of extreme events, rising sea levels, melting glaciers, and changing the weather pattern across the globe.
