Науки об окружающей среде
pandemics
100%
energy source
72%
urban development
71%
alternative energy
69%
tourism
67%
world
56%
industry
52%
development planning
43%
city
41%
urban planning
37%
energy
36%
legislation
33%
document
28%
recommendation
28%
medical tourism
24%
project
19%
international tourism
19%
gas
18%
information infrastructure
18%
energy market
16%
alternative fuel
15%
youth
15%
oil
14%
liquefied natural gas
14%
information technology
13%
solar energy
13%
biofuel
12%
poverty
12%
environmental risk
12%
solar wind
12%
cooperation
10%
economy
9%
shale
9%
hydrogen
9%
organization
9%
statistics
8%
demand
8%
economics
7%
resource
6%
sea
6%
trend
6%
Социальные науки
national park
87%
Arctic
84%
social inequality
73%
climate change
63%
Tourism
63%
Sports
54%
poverty
52%
economics
36%
tourist
34%
political situation
29%
sports movement
19%
post-socialist country
15%
socialist state
13%
morality
11%
cultural capital
11%
socialism
11%
social class
9%
Social Policy
9%
justice
8%
Russia
7%
trend
5%
Физика и астрономия
energy sources
83%
sectors
64%
energy
21%
oils
19%
liquefied natural gas
16%
gases
16%
hydrogen fuels
16%
windpower utilization
16%
shales
15%
economy
13%
solar energy
12%
economics
11%
solar wind
10%
resources
10%
industries
8%
statistics
8%