Translation of recuperate in German

Hans was not in the office for 4 days. I informed him that it is urgent and asked him to send it by tomorrow morning. I'll do my best that you receive it as early as possible. Trust me on that.
After our system update, lessons will be saved for 30 minutes automatically, if you want to save them permanently, you need to press the 'save lesson' button. It than works the same basically.
The ice blocks that usually break off during the summer started already to break off in spring due to the Global warming. The glaciers in general were loosing volume as we were told and as we could see.