According to scientists, hurricanes have become stronger because of … .

In 2011, an underwater earthquake off Japan's coast … a tsunami.

Eating fish from this polluted river is a … to people's health.

Brian … never … before, so he's a bit nervous.

The biologist … several times recently about how plastic harms marine life.

How … you first … about the effects of global warming?

The article … the factory's use of harmful chemicals.

In 2018, the volcanic eruption of Mt Kilauea in Hawaii changed the … of the area.

This suburb of London was once filled with … and old trees.

When … they … a month in the rainforest in Costa Rica?

The mayor often talks about environmental issues, but she never … .

Jane and I … recently because we're both so busy.

I hope one day all cars will use … like solar power.

Conservationists … the local wildlife in order to preserve its habitat.

Why … you … your project yet?

Many cities have … smoking on their beaches.

I … already … the documentary series Planet Earth.

We … to start a community garden.

Experts don't know what … the oil spill last week.