Even a partial list of man’s desecrations is saddening: acid rain and greedy logging practices that destroy whole forests; careless dumping of nuclear waste, toxic chemicals, and raw sewage; weakening of the protective ozone layer; and careless use of herbicides and pesticides.
वैज्ञानिक आकाश को अंतरिक्ष - सम्बन्धी कूड़े से भर रहे हैं, मानो अपनी गन्दगी ख़ुद साफ़ नहीं करते ।