LEO Network

Background Articles

Search our collection of background (non-event) articles from news media, science journals and other sources.


197 Posts


Natural Environment

Ocean / Sea
 
76 39%
Fish
 
73 37%
Invertebrates
 
46 23%
Marine Mammals
 
38 19%
Plants / Kelp
 
35 18%
Birds
 
33 17%
Surface Waters / Wetlands
 
29 15%
Land Mammals
 
28 14%
Weather
 
20 10%
Insects
 
19 10%
Microbes
 
14 7%
Land
 
13 7%
Reptiles
 
7 4%
Amphibians
 
6 3%
Arachnids
 
4 2%
Groundwater
 
3 2%
Air
 
2 1%
Atmosphere
 
2 1%
Fungi
 
1 <1%
Other
 
1 <1%

Unusual or Unexpected Event

Death / Die-off / Decline
 
197 100%
Extreme Temperature
 
42 21%
Deformity / Disease / Injury
 
17 9%
Unusual Range / Sighting
 
17 9%
Drought
 
15 8%
Unusual Size / Abundance
 
13 7%
Infestation
 
12 6%
Ice / Snow Change
 
11 6%
Algal Bloom
 
9 5%
Pathogen
 
7 4%
Pollution
 
6 3%
Seasonal Timing
 
6 3%
Unusual Animal Behavior
 
4 2%
Extreme Precipitation
 
4 2%
Extreme Wind
 
3 2%
Fire
 
3 2%
Physical or Chemical Change
 
2 1%
Erosion
 
2 1%
Flooding / Draining
 
2 1%
Landslide / Avalanche
 
1 <1%
Rain on Snow
 
1 <1%
Sea/Land Level Change
 
1 <1%

Impact on Human Environment

Food Security
 
62 31%
Economic Impact
 
38 19%
Cultural Impact
 
33 17%
Fisheries
 
29 15%
Sports / Recreation
 
19 10%
Human Health
 
14 7%
Harvest Change
 
12 6%
Aquaculture
 
9 5%
Agriculture
 
8 4%
Livestock
 
7 4%
Forestry
 
6 3%
Buildings
 
4 2%
Safety
 
3 2%
Water Security
 
3 2%
Air Quality
 
2 1%
Burial Site
 
2 1%
Displacement
 
2 1%
Transportation
 
2 1%
Energy
 
1 <1%
Pets
 
1 <1%
Resilience
 
1 <1%
Sanitation
 
1 <1%
Water Management
 
1 <1%

Year

2 1 1 1 1 3 4 9 31 64 27 23 6
 
 
 
 
 
 
 
 
 
 
 
 
 
1997 2007 2008 2011 2012 2015 2016 2017 2018 2019 2020 2021 2022

Month

15 13 8 9 10 18 16 12 21 15 21 15
 
 
 
 
 
 
 
 
 
 
 
 
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Season

FALL
 
57
SUMMER
 
46
WINTER
 
43
SPRING
 
27

Country

United States
 
50
Canada
 
19
Russia
 
5
Iceland
 
3
Norway
 
3
Japan
 
2
Afghanistan
 
1
Australia
 
1
Estonia
 
1
Finland
 
1
Greece
 
1
Greenland
 
1
Guatemala
 
1
Puerto Rico
 
1
Svalbard and Jan Mayen
 
1
United Kingdom
 
1