jp and ryland climate change ! is weather becoming more extreme?! a. are major storms (such as...
Post on 29-Dec-2015
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JP and Ryland
CLIMATE CHANGE !IS WEATHER BECOMING MORE EXTREME?!
A. ARE MAJOR STORMS (SUCH AS HURRICANES) BECOMING MORE FREQUENT AND/OR MORE INTENSE?B. ARE THERE MORE EPISODES OF DROUGHTS AND FLOODING AROUND THE WORLD THAN THERE WERE IN THE PAST?C. ARE TEMPERATURE EXTREMES GREATER THAN THEY HAVE BEEN HISTORICALLY?
a. Are major storms (such as hurricanes) becoming more frequent and/or more intense?
Yes they were pretty frequent
But not as frequent now
One of the big factors of them is the climate change
In some places a climate change can trigger a hurricane
They have not been as frequent around 2013
Here is a graph of them from 1925-2007 During 1948 they were not very frequent
As well as 2001 they occurred a bit more
But in 2007 they started to pickup
They were very frequent
As seen in the last slide they are more frequent
They were very uncommon during 1948-1957
And became very frequent from2001-2007
But around 2013 they started to stop
This graph is from 1880-2013
And it is clear there have been way less
b. Are there more episodes of droughts and flooding around the world than there were in the past?
Yes they are slowly becoming more frequent in the current day
Both droughts
And flooding's
They are both slowly stating to not become as frequent
Here is a graph of flooding's
They are still common but not as common as they were before
There were a bunch of flooding's in 2011 and 2012
And dropped off around 2013
They have also not been very frequent
Flooding's in 2015
Recently in Queensland a major flood happened
An 8 year old boy and 2 adults were killed in it
The wild weather caused by a low pressure system moves south to coincide with peak hour traffic
And luckily not too many people were harmed
2 Flooding in January
January 16 2015 135,000people had ben affected in Malawi, Mozambique and Zimbabwe
The flood had caused damage to not only crops but also livestock
Zimbabwe had the flood go across their country
And that affected 500 households that became in need of urgent assistance
While in Madagascar weeks of the high rainfall already made it perfect for a flood
With high river levels and soil saturation. The flood happened
And at least 14 people died from the flooding
With multiple neighborhoods being evacuated
Here is a graph of droughts from 2000-2009 This graph shows droughts from
2000-2009
They have slowly become less frequent
The U.S.A is supposed to face their worst drought in1,000 years
As seen in the picture on the left the risk of droughts in 2050-2099 are insanely high
California is already on their 4th year of drought
And projected droughts are to be far worse than California's
But the predicted ones are projected to last for decades not years
And with the demand for water have drastically reduced the ground water source
Conclusion
Droughts are slowly becoming more frequent than they were
As well as flooding's they have almost stopped and don’t occur as much as they used to. But have occurred recently
So in conclusion floods are slowly coming back. And droughts are projected to be back in the U.S.A around 2050
But maybe next year or in a few years they could become frequent again
And if there is a drought it is exceptional (As seen in photo)
c. Are temperature extremes greater than they have been historically?
Now the temperature is greater than before. Here is four examples.
First: Population
Second: carbon dioxide, methane, and nitrous oxide
Third: ice cores , and most recently from the Mauna Loa station.
First
Global population. Look at the graph, at first 1300, population was lower than one million but now,,, over than 7million.
Second
from the 2013 US national climate assessment shows two thousand years of atmospheric concentrations for carbon dioxide, methane, and nitrous oxide: for 0~1800years Carbon Dioxide was not that much high. But only for 500 years Carbon Dioxide jumped up. It means global warming is getting worse and worse.
Third
shows over 10,000 years of carbon dioxide concentrations with measurements taken from ice cores , and most recently from the Mauna Loa station.
Sources
A
www.commdiginews.com (picture)
B
www.ncdc.noaa.gov (picture)
http://www.theguardian.com/environment/2015/feb/12/us-faces-worst-droughts-1000-years-climate-change-predict-scientists (webpage)
http://reliefweb.int/disaster/fl-2015-000006-mwi
C http://scienceblogs.com/significantfigures/index.php/2013/04/10/iconic-curves-2-on-exponential-curves-hockey-sticks-and-environmental-crises/(webpage)
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