'Scorched' in the Bible

I will raise weeping and a lamentover the mountains,a dirge over the wilderness grazing land,for they have been so scorchedthat no one passes through.The sound of cattle is no longer heard.From the birds of the sky to the animals,everything has fled—they have gone away.

Who is the man wise enough to understand this? Who has the Lord spoken to, that he may explain it? Why is the land destroyed and scorched like a wilderness, so no one can pass through?