3. Past severe floods in southern Manitoba
The frequency and anatomical development of flood
signatures in 1826 suggest that flood was the most severe
since at least AD 1648.
Despite comments by an early fur trapper that suggest
flooding was unusually extensive in 1776, there is no tree-
ring evidence for such an event.
The Assiniboine and Red River floods of 1826 coincided with
severe frost damage in the south-central United States, which
implies that unusual spring weather extended throughout
central North America.
17. Time to leave
Tribal forces have established control across Eastern Libya
since the police forces abandoned their posts a week ago,
according to migrant workers fleeing the country via Egypt in
their thousands.
A last ditch a empt by mercenaries flown in from Chad,
Zimbabwe, and Guinea and gunmen firing from helicopters to
re-establish Muammar Qaddhafi's hold le a bloody trail, but
no change to the tribal takeover.
The scale of the violence contrasts markedly with North
Africa's largely peaceful uprisings.
34. Martin-Philippe Girardin
Canadian Forest Service
Greg Pederson
United States Geological Survey
Glen MacDonald David Sauchyn Emma Watson
UCLA University of Regina Environment Canada
Erik Nielsen Jacques Tardif
Manitoba Geological Survey University of Winnipeg
35. “ Drought severity over the Northern Plains
during 1932 – 1939 was likely triggered
”
instead by random atmospheric variability.
Hoerling et al., Geophysical Research Le ers, 2009
40. MORE
OF THE
Changing color, size, typeface style or
boldness can create clear focal points. It’s a
SAME
good idea to have one primary focal point
accompanied by one or two secondary focal
DIFFERENT
points that aren’t quite as strong.
41. Renewable water resources, by country
Brazil
Russia
Canada
USA
China
India
Columbia
Peru
Zaire
0 2,000 4,000 6,000
Source: Shiklomanov and Rodda, 2003
km3/y
42. Renewable water resources, by country
Brazil
Russia
Canada
USA
China
India
Columbia
Peru
Zaire
0 2,000 4,000 6,000
Source: Shiklomanov and Rodda, 2003
km3/y
