ch7
How much of the Amazon forest might be lost to just a 2°C increase in global temperatures?
20%
When is it expected that most of the available snow and ice that provides water to the Himalaya region will be gone during summers?
2050
How much of the water that irrigates the Amazon forest actually comes from the plants themselves?
25-35
How many people live in river delta regions and depend on the resources there for their livelihood?
300 mil
How much less precipitation is southern Europe projected to experience this century?
40%
The last time global air temperatures were higher than today, sea level was this much higher.
4m
How much of the world's cereal crop relies on river flow from the Himalaya Mts?
5-10%
If all the ice on Greenland melted, how much would sea level rise?
7 m
Severe coral bleaching occurs when DHW values exceed
8
In the year 2080, how many people are expected to be at risk by rising sea levels?
+5billion
What gives coral its color?
microalgae
One degree heating week (DHW) is
1 week 1C above summer max
How many years has the Amazon Rainforest been fundamentally intact?
1,000,000
What percentage of the world's population live within 100km of a coral reef and are dependent on its survival?
10%
Today the ocean water pH is changing faster than it has at any time in this many years:
100,000
If the Nile River delta experiences a 1 meter sea level rise, how much agricultural land would be lost in Egypt?
15%
Which of the following regions of the United States will NOT likely face a water crisis?
NE
The technical resources needed by a community to respond to climate change is known as
adaptive cap
Which of the following uses the most freshwater?
agriculture
Which of the following are a cause for concern about Amazon deforestation? Choose all that apply.
all of the above
Why is it difficult for poorer nations to cope with climate change? Choose all that apply.
all of the above
Which of the following ecosystems is most vulnerable to even minor climate change?
amazon
The sum total of all living organisms on the planet is known as
biosphere
What is NOT true about melting glaciers in the Himalaya Mts?
causing more summertime flooding
Where in the Middle East is salt water intrusion into freshwater aquifers potentially the most damaging?
gaza
Which of the following accounts for most of the world's water supply?
ground water
Why did sea levels fall in 2011?
increaced rainfall
Pacific island residents can expect this change in annual rainfall by the year 2050:
increase 10% decrease 10%
Which of the following events in Bangladesh is NOT expected to be increased by global warming?
increased rice supplies
What is the current trend for methane concentration in the atmosphere?
increasing
The expected rise in sea level by the year 2100 is expected to be
less than ipcc
Due to climate change, which of the following diseases is likely to put the most people at risk?
malaria
How long do scientists expect it would take to completely melt the ice on Greenland or West Antarctica?
many thousands
Which of the following is NOT considered a solution to cope with water loss in the Himalaya Mountains?
more terracing farming practices
Which of the following is NOT considered to be a major factor in determining the impact of climate change?
natural variation
Which of the following rivers does NOT flow from the Himalaya Mts?
nile
Where is the largest store of frozen material that contains methane gas?
ocean floor
Which of the following is NOT a keystone species?
salamander
Which of the following natural barriers to storm surge are decreasing? Choose all that apply.
salt flats mangrove swamps coral reefs
Which of the following is usually found in acidic ocean water?
sea grass
Which of the following likely has the greatest impact on the effects of disease?
social conflict
Why was Cyclone Nargis, which impacted Myanmar in 2008, particularly devastating?
the gov refused international aid
What is true about trees in higher latitudes?
trees are migrating northward
Which of the islands below is likely to disappear under the water due to rising sea levels?
tulavlu hong kong
How well has Bangladesh responded to the threat of climate change?
very
Which of the following may be a beneficial outcome of climate change?
warmer spring temperatures