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As of 2021 the remaining carbon budget for a 50-50 chance of staying below 1.5 degrees of warming is 460 bn tonnes of CO 2 or 11 + 1 ⁄ 2 years at 2020 emission rates. [14] Global average greenhouse gas per person per year in the late 2010s was about 7 tonnes [15] – including 0.7 tonnes CO 2 eq food, 1.1 tonnes from the home, and 0.8 tonnes from transport. [16]
On the demand side, limiting food waste is an effective way to reduce food emissions. Changes to a diet less reliant on animal products such as plant-based diets are also effective. [10]: XXV With 21% of global methane emissions, cattle are a major driver of global warming.
Some climate change effects: wildfire caused by heat and dryness, bleached coral caused by ocean acidification and heating, environmental migration caused by desertification, and coastal flooding caused by storms and sea level rise. Effects of climate change are well documented and growing for Earth's natural environment and human societies. Changes to the climate system include an overall ...
Limiting new black carbon deposits in the Arctic could reduce global warming by 0.2 °C by 2050. [142] The effect of decreasing sulfur content of fuel oil for ships since 2020 [143] is estimated to cause an additional 0.05 °C increase in global mean temperature by 2050. [144]
For example, the IPCC Special Report on Global Warming of 1.5 °C was a "key scientific input" into the 2018 United Nations Climate Change Conference. [4] Various pathways are considered in the report, describing scenarios for mitigation of global warming.
Solar radiation modification (SRM) (or solar radiation management or sunlight reflection methods [1] or solar geoengineering), is a group of large-scale approaches to limit global warming by increasing the amount of sunlight (solar radiation) that is reflected away from Earth and back to space.
This could be a potential tool to reduce global warming. [2] Cirrus cloud thinning is an alternative category of climate engineering, in addition to solar radiation management. In 2021 the IPCC described CCT as a proposal "to reduce the amount of cirrus clouds by injecting ice nucleating substances in the upper troposphere." However it reported ...
Climate change and climate change education are global challenges that can be anchored in the curriculum in order to provide local learning and widen up mindset shifts on how climate change can be mitigated. [2] In such as case CCE is more than climate change literacy but understanding ways of dealing with climate [3]