This has brought a number of serious problems such as global warming.

The term has since been used by many other politicians in attacks against opponents or various beliefs, such as global warming.

Beijing is also a key partner in addressing other international concerns, such as global warming.

He has, on occasion, written about international issues such as global warming.

Topics such as global warming, peak oil, renewable energy, population control and environmental issues are discussed.

Frey has also written about environmental topics, such as global warming.

If this is not done they can contribute to environmental harm such as global warming or acid rain.

The video's theme is a call for action to save the planet from the problems it faces, such as global warming.

The market alone cannot address concerns such as air safety, global warming or the integration of immigrants.

However, they face challenges such as global warming, which is a huge challenge for them.