CLEAN : In scorched UK, source of River Thames dries up

The video discusses a journey along the Thames Path, starting at Thames Head. The river is unusually dry, raising concerns about climate change. The speaker compares the current conditions to those in southern Europe and expresses concern about the UK's need to adapt to hotter, drier summers.

What concerns does the speaker express regarding future weather conditions?

What does the speaker hope for the Thames river by autumn?