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To limit global warming to less than 1.5 °C global greenhouse gas emissions needs to be net-zero by 2050, or by 2070 with a 2 °C target. [271] This requires far-reaching, systemic changes on an unprecedented scale in energy, land, cities, transport, buildings, and industry.
The United Nations Framework Convention on Climate Change (UNFCCC) is the UN process for negotiating an agreement to limit dangerous climate change.It is an international treaty among countries to combat "dangerous human interference with the climate system".
The Paris Agreement (also called the Paris Accords or Paris Climate Accords) is an international treaty on climate change that was signed in 2016. [3] The treaty covers climate change mitigation, adaptation, and finance.
The German Climate Action Plan 2050 (German: Klimaschutzplan 2050) is a climate protection policy document approved by the German government on 14 November 2016. [1] The plan outlines measures by which Germany can meet its various national greenhouse gas emissions reduction goals through to 2050 (see table) and service its international commitments under the 2016 Paris Climate Agreement.
Climate variability is the term to describe variations in the mean state and other characteristics of climate (such as chances or possibility of extreme weather, etc.) "on all spatial and temporal scales beyond that of individual weather events."
Emission trajectories needed to achieve the Paris Agreement's two-degree target without negative emissions, depending on the emission peak. Evolution of land and sea temperatures 1880-2020 compared to the 1951-1980 average.
In order to stay under 1.5 °C of global warming, carbon dioxide (CO₂) emissions from G20 countries need to decline by about 45% by 2030 and attain net zero in 2050. [18] To be able to meet the 1.5 °C or even 2 °C, which is the maximum set by the Paris Agreement , greenhouse gas emissions must start to fall by 7.6% per year starting on 2020 ...
The widespread adoption of a vegetarian diet could cut food-related greenhouse gas emissions by 63% by 2050. [110] China introduced new dietary guidelines in 2016 which aim to cut meat consumption by 50% and thereby reduce greenhouse gas emissions by 1 Gt per year by 2030. [ 111 ]