Donald Trump said he would impose high tariffs and further sanctions on Russia if it continued its "ridiculous war".

Adopted by nearly 200 countries in the French capital in December 2015, the Paris Agreement came into force on 4 November 2016. To "pursue efforts" to limit global temperature rises to 1.5C ...

President Donald Trump has addressed Russia's invasion of Ukraine for the first time since his inauguration, calling on Vladimir Putin to end the war or face further sanctions. DW has more.