This is the 4051st most frequent Russian word.
мировые
"Мировые" – "global," "world," or "universal" (depending on context).
Here, 'мировые' is used to describe 'новости' (news) as something related to the whole world globally.
Мировые новости всегда актуальны.
Global news is always relevant.
In this sentence, 'мировые' qualifies 'достижения' (achievements), indicating that the achievements are significant on a worldwide scale.
Мировые достижения вдохновляют молодежь.
Global achievements inspire the youth.
Here, 'мировые' is applied to 'проблемы' (problems), meaning the issues are challenges affecting the entire planet and humanity.