Cheat sheets content 1-5 Flashcards
How old is the human-caused warming?
150 years.
How long did the last ice age last and how long ago
Lasted 20,000 years and ended 10,000 years ago
How much energy is emitted by Sun
340 W /m2
How much solar energy is absorbed by earth?
238 W / m2
How much sunlight reflects back from earth
30%
The most importang GHG in the atm + next most imp
- Water vapor
- Methane
When did CO2 begin increasing
start of 19th century
Current concentration of methane
1.9 ppm in 2020
Methane GWP
28
Which SSP is the most positive, and the most negative?
SSP1 - most positive
SSP5 - most negative
CCUS meaning
Carbon Capture Utilisation and Storage
Nature-based solution def
Nature-Based Solutions – Actions to protect, manage, or
restore ecosystems that address societal and human
challenges (reforestation, mangrove restoration, etc.)
4 ecosys types
- Supporting services: are fundamental conditions that
enable the existence of other services - Provisioning services: generate resources e.g.food/water
- Regulating services: control ecological processes, e.g. wetlands do flood control, forests sequester carbon)
- Cultural services: The non-material benefits &
enjoyments humans derive from ecosystems
LCA + its steps
Life Cycle Assessments (LCA): Cradle-to-grave
assessment: Goal/Scope>Inventory analysis>Impact
assessment>Interpretation
Where physical R types were defined and what are those?
In TCFD
Acute and chronic (sea level rise, temperature rise)
Types of transition R
Policy & legal ((e.g. govt mandate on closure))
Technology (tech devt of renewable energy and cheapening batteries)
Market
Reputation (consumer pressure for household goods)
Exposed VS vulnerable
Exposure - assets in vulnerable place
Vulneragility - how likely is the asset to get hurt from the danger
Deadline of net zero emissions for govts
2050
Types of indirect risks
Supply chain risk
Liability risk - R of firm suffering financially after being legally liable
Insurers pulling out the coverage
3 classic policy solutions for GHG emissions
Carbon tax
Cap and trade
Price on emissions
Just transition def
Helping people & communities smoothly
switch to cleaner & greener ways of doing things, without
leaving anyone behind
When consensus on human influence on climate was formed?
1980s
Formation of IPCC date
1988
UNFCC - when was establilshed and what it is
est in 1992 at the Rio Summit
UN body dedic to CC. First worlwide climate agreement