LECTURE 16- GEOENGINEERING. || A VERIFIED A+ PASS.
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Course
LECTURE 16- GEOENGINEERING
Institution
LECTURE 16- GEOENGINEERING
WHAT IS GEOENGINEERING? correct answers DELIBERATE MANIPULATION OF EARTH'S CLIMATE TO COUNTERACT THE EFFECTS OF GREENHOUSE GASES.
PROPOSED GEOENGINEERING METHODS FALL INTO WHICH TWO CATEGORIES? correct answers SOLAR RADIATION MANAGEMENT- REDUCING THE SOLAR RADIATION ABSORBED AT THE SURFACE BY RE...
LECTURE 16- GEOENGINEERING. || A VERIFIED A+
PASS.
WHAT IS GEOENGINEERING? correct answers DELIBERATE MANIPULATION OF
EARTH'S CLIMATE TO COUNTERACT THE EFFECTS OF GREENHOUSE GASES.
PROPOSED GEOENGINEERING METHODS FALL INTO WHICH TWO CATEGORIES?
correct answers SOLAR RADIATION MANAGEMENT- REDUCING THE SOLAR
RADIATION ABSORBED AT THE SURFACE BY REDUCING AMOUNT COMING IN OR
INCREASING AMOUNT REFLECTED BACK INTO SPACE.
CARBON DIOXIDE REMOVAL- DIRECT REMOVAL OF CO2 OR ADJUSTING
NATURAL PROCESSES TO SPEED UP CO2 REMOVAL.
LIST SOME GEOENGINEERING METHODS. correct answers - CLOUD SEEDING.
- AEROSOLS IN STRATOSPHERE.
- GIANT REFLECTORS IN ORBIT.
- GROW TREES.
- GENETICALLY ENGINEERED CROPS.
- GREENING DESERTS.
- IRON FERTILISATION OF SEA.
- PUMP LIQUID CO₂ INTO DEEP SEA.
- PUMP LIQUID CO₂ INTO ROCKS.
WHAT IS THE TOTAL INCOMING SOLAR RADIATION? HOW MUCH OF THIS IS
REFLECTED? correct answers 342 W m⁻²
100 W m⁻² REFLECTED.
WHAT IS THE AIM OF SOLAR RADIATION MANAGEMENT? correct answers TO
INCREASE NET PLANETARY ALBEDO.
WHAT CHANGE IN ALBEDO IS NEEDED TO BE EFFECTIVE? correct answers DEPENDS
WHERE REFLECTIVITY IS CHANGED, BUT ABOUT 4% INCREASE IN ALBEDO
WOULD REFLECT AN ADDITIONAL 4W m⁻².
WHAT ARE SOME SRM APPROACHES? correct answers - CLOUD ALBEDO
ENHANCEMENT.
- DESERT ALBEDO ENHANCEMENT.
- HUMAN SETTLEMENT ALBEDO.
- MORE REFLECTIVE CROPS.
- STRATOSPHERIC AEROSOL.
- SPACE-BASED REFLECTORS.
- CONVENTIONAL MITIGATION.
, WHAT IS CLOUD ALBEDO ENHANCEMENT? WHAT IS ITS MAX GLOBAL
RADIATIVE FORCING AND COST PER YEAR PER W m⁻²? correct answers ADDING
EXTRA CCN TO MARINE CLOUDS USING WIND-POWERED VESSELS.
~4W m⁻²
$0.2 BILLION
WHAT IS DESERT ALBEDO ENHANCEMENT? WHAT IS ITS MAX GLOBAL
RADIATIVE FORCING AND COST PER YEAR PER W m⁻²? correct answers PUTTING
REFLECTORS IN DESERT REGIONS.
~3W m⁻².
$1000 BILLION.
WHAT IS HUMAN SETTLEMENT ALBEDO? WHAT IS ITS MAX GLOBAL RADIATIVE
FORCING AND COST PER YEAR PER W m⁻²? correct answers WHITE ROOFS/ROADS.
~0.2W m⁻².
$2000 BILLION.
WHAT IS MORE REFLECTIVE CROPS? WHAT IS ITS MAX GLOBAL RADIATIVE
FORCING AND COST PER YEAR PER W m⁻²? correct answers CHOOSING OR
DEVELOPING MORE REFLECTIVE CROP VARIETIES.
~1W m⁻².
FREE.
WHAT IS STRATOSPHERIC AEROSOL? WHAT IS ITS MAX GLOBAL RADIATIVE
FORCING AND COST PER YEAR PER W m⁻²? correct answers INJECTING AEROSOLS
INTO THE STRATOSPHERE- SO₂ GAS OR SO₄ PARTICLES. REFLECT SUNLIGHT.
UNLIMITED RADIATIVE FORCING.
$0.2 BILLION.
WHAT ARE SPACE-BASED REFLECTORS? WHAT IS ITS MAX GLOBAL RADIATIVE
FORCING AND COST PER YEAR PER W m⁻²? correct answers TINY MIRRORS IN
EARTH ORBIT.
UNLIMITED RADIATIVE FORCING.
$5 BILLION.
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