Cliamte

Question 1

Name 4 global climate predictions

Answer 1

-on average -> Earth will become warmer -> ^ evaporayion and precipitation#

-sudden shifts in weather patterns

-more extreme, intense and frequent events; floods, droughts

-rising mean sea level

Question 2

What is positive feedback

Answer 2

global warming creates ice melt & permafrost thawing releasese trapped methane. Drying forests and warming oceans emit CO2

-increased greenhouse gases means increased warming

-more and more carbon added to worlds atmosphere that isnt taken in

-instability in the cycle -> very little chance of reaching equilibirium -> greater chance of cycle not being created

Question 3

What is negative feedback

Question 4

Explain implications for ecosystems due to the impacts of global warming

Answer 4

-

Question 5

Explain implications for hydrological cycle due to the impacts of global warming

Answer 5

due to global warming;

-evarporation rates may ^ -> more moisture circulating throughout the cycle rather than being stored in oceans

-precipitation types change -> northern hemisphere -> spring snow has decreased -> earlier springs -> earlier peaks in snowmelt -> river flows and flows into oceanic stores

Question 6

How has global warming affected El Nino-Southern Oscillation

Answer 6

ENSO is important to earths climate system & affects hdyrological cycle

-due to global warming:

-droughts & floods driven by ENSO may be more intense & increase in frequency

Question 7

What is soil carbon balance

Answer 7

if plant residue is added to soil faster than soil organisms convert it into co2

-carbon = removed from atmosphere & sequestered in soil