…… describe four different 21st century pathways of greenhouse gas (GHG) emissions and atmospheric concentrations, air pollutant emissions, and land use.
Representative Concentration Pathways (RCPs)
As RCPs but with groth of population, economic chage, …
Shared Socioeconomic Pathways (SSPs)
The phenomenon of the Arctic warming faster than the global average is called ….. .
Arctic amplification
The differences between the simulated changes are often referred to as ….. .
biases
In terms of hot temperature extremes over land, a once 50-year event will be roughly ___ times more likely under 4°C warming.
40
In terms of heavy precipitation over land, a once 10-year event will be roughly ___ times more likely under 2°C warming.
1.7
In terms of droughts in drying regions, a once 10-year event will be roughly ___ times more likely under present warming.
The …… is the frozen water part of the Earth system.
cryosphere
…… – where more mass is gained than lost (part of the glacier with the highest elevation).
Accumulation area
– where more mass is lost than gained (where most of the melting or evaporation occurs)
Ablation area
When accumulation equals ablation, the glacier is in …. .
equilibrium
This typically occurs in …… (sheets and pieces of floating ice) separated by …… (channels of water).
floes
leads
A …….. is a reservoir in the Earth system that takes in more carbon than it gives off.
carbon sink
A ……. is a reservoir in the Earth system that gives off more carbon than it takes in.
carbon source
The process by which carbon is removed from the atmosphere is called ….. .
carbon sequestration
In addition to rising temperatures, land run-off adds extra nutrients to the oceans, leading to …….. , an excessive amount of nutrients that causes a dense growth of plant life and death of animal life from a lack of oxygen.
eutrophication
The …….. is the entity tasked with supporting the global response to the threat of climate change and comprised of 197 countries.
United Nations Framework Convention on Climate Change (UNFCCC)
The ……… is the supreme body of the Convention and meets once a year.
Conference of the Parties (COP)
It led to the ………, an international agreement that stands on its own and requires separate ratification by governments.
Kyoto Protocol
It led to the ……. , a legally binding international treaty that brings all nations into a common cause to undertake ambitious efforts to combat climate change and adapt to its effects.
Paris Agreement
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