Unwanted matter or material.
Waste
The way the Earth's weather is changing.
Climate change
To buy something to help you remember a holiday or special event.
Souvenirs
The protection of nature.
Conservation
The activity of visiting places which are interesting because they are historical, famous, etc.
Sightseeing
A long walk or walking tour.
Hike
Not bright.
Dull
Slightly wet, especially in a way that is not pleasant or comfortable.
Damp
A journey in which you visit a place for a short time and come back again.
Trip
A vehicle or system of vehicles, such as buses, trains, aircraft, etc. for getting from one place to another.
Transport
The amount of energy that a person or organization uses in order to exist or operate.
Carbon footprint
A natural fuel such as coal or gas formed in the geological past from the remains of living organisms.
Fossil fuel
When you travel from one place to another.
Journey
Unpleasantly cold.
Chilly
To sit or lie in the sun so that your skin becomes brown.
Sunbathe
Humid air or weather is hot and slightly wet.
Humid
Slightly cold, but not too cold.
Cool
A light and pleasant wind.
Breeze
A sudden flash of light in the sky during a storm.
Lightning
A visit to and around a place, area, or country.
Tour
To take pictures.
Take photos (phrasal verb)
The weather conditions that an area usually has.
Climate
Not harmful to the environment.
Environmentally friendly
A short period of rain.
Shower
The activity of travelling.
Travel