LEO Network

Background Articles

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


212 Posts


Natural Environment

Ocean / Sea
 
80 38%
Fish
 
78 37%
Invertebrates
 
47 22%
Birds
 
40 19%
Marine Mammals
 
40 19%
Plants / Kelp
 
35 17%
Surface Waters / Wetlands
 
31 15%
Land Mammals
 
28 13%
Weather
 
20 9%
Insects
 
19 9%
Microbes
 
14 7%
Land
 
13 6%
Reptiles
 
7 3%
Amphibians
 
6 3%
Arachnids
 
4 2%
Groundwater
 
3 1%
Air
 
2 <1%
Atmosphere
 
2 <1%
Fungi
 
1 <1%
Other
 
1 <1%

Unusual or Unexpected Event

Death / Die-off / Decline
 
212 100%
Extreme Temperature
 
43 20%
Deformity / Disease / Injury
 
25 12%
Unusual Range / Sighting
 
18 8%
Drought
 
15 7%
Unusual Size / Abundance
 
13 6%
Infestation
 
12 6%
Ice / Snow Change
 
11 5%
Algal Bloom
 
9 4%
Unusual Animal Behavior
 
7 3%
Pathogen
 
7 3%
Pollution
 
6 3%
Seasonal Timing
 
6 3%
Extreme Precipitation
 
4 2%
Extreme Wind
 
3 1%
Fire
 
3 1%
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
 
69 33%
Economic Impact
 
39 18%
Cultural Impact
 
36 17%
Fisheries
 
33 16%
Sports / Recreation
 
20 9%
Harvest Change
 
15 7%
Human Health
 
15 7%
Aquaculture
 
9 4%
Agriculture
 
8 4%
Livestock
 
7 3%
Forestry
 
6 3%
Safety
 
6 3%
Buildings
 
4 2%
Water Security
 
3 1%
Air Quality
 
2 <1%
Burial Site
 
2 <1%
Displacement
 
2 <1%
Transportation
 
2 <1%
Conflict
 
1 <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 65 27 23 15
 
 
 
 
 
 
 
 
 
 
 
 
 
1997 2007 2008 2011 2012 2015 2016 2017 2018 2019 2020 2021 2022

Month

15 13 8 9 11 24 18 13 21 15 21 15
 
 
 
 
 
 
 
 
 
 
 
 
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Season

FALL
 
57
SUMMER
 
52
WINTER
 
43
SPRING
 
27

Country

United States
 
57
Canada
 
20
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