पर्यावरण ब्लॉग के नवीन अंक में हम सतत विकास की संकल्पना पर बात करते हैं। संज्ञान में लें कि पर्यावरण और विकास की बहस बहुत पुरानी है तथा दोनों को एक-साथ देखने की दृष्टि ही सतत विकास की अवधारणा है। पहले ही महात्मा गाँधी ने भांप कर कहा था कि “प्रकृति प्रत्येक मनुष्य की आवश्यकता पूरी कर सकती है, लेकिन एक भी मनुष्य के लालच को वह पूरा नहीं कर सकती”, इसे समझते हुए  यदि गंभीरतापूर्वक देखें तो वैश्विक स्तर पर सतत विकास की अवधारणा का जन्म पर्यावरण की चिंताओं के दृष्टिग्त नहीं हुआ है। प्रकृति ने स्वयं अवरोध उत्पन्न किये कि विश्व को अपनी हवा, अपने पानी और अपनी मिट्टी की चिंता  करने के लिये मजबूर होना पड़ा। इस बाध्यता का कारण भी बाजार के हित में ही अंतर्निहित था। व्यापारी हो चुके राष्ट्रों को अपने आर्थिक लाभ प्रभावित होने और उत्पादन प्रणालियों के बंद हो जाने का भय सताने लगा था। जिन राष्ट्रों की पूर्ण निर्भरता अपने औद्योगिक उत्पादनों पर थी वे अब ऐसी तकनीक चाहते थे जो विकास का पहिया भी न रुकने दे और उनके कारण पर्यावरण पर पड़ने वाले प्रभावों की कुछ रोकथाम भी सम्भव हो।   उत्पादों के द्वितीयक प्रभावों ने भी उत्पादक राष्ट्रों की चिंता बढा दी ...

Image Source = https://www.eagrovision.com/wp-content/uploads/2019/09/15632752926.jpg   GREENHOUSE GASES AND GLOBAL WARMING    Q. What are Greenhouse Gases? Greenhouse gases are gases in Earth’s atmosphere that trap heat. They let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere. The main greenhouse gases are: Water vapor Carbon dioxide Methane Ozone Nitrous oxide Chlorofluorocarbons   Q. What is the Greenhouse Effect? The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. The greenhouse effect is one of the things that makes Earth a comfortable place to live.   Q. How does the Greenhouse Effect work? As you might expect from the name, the greenhouse effect works like a greenhouse. A greenhouse is a building with glass walls and a glass roof. Greenhouses are used to grow plants, such as tomatoes and tropical flowers. A greenhouse stays warm inside, even during the winter. In the daytime, sunlight shines into the greenhouse and warms the plants and air inside. At night time, it's colder outside, but the greenhouse stays pretty warm inside. That's because the glass walls of ...

image source : https://kalakkalsamayal.blogspot.com/2014/03/bhringaraj-thuvaiyal.html   Nomenclature Scientific Name: Eclipta prostrata (Eclipta alba – old) Hindi & Sanskrit: Bhringaraj English: False daisy Tamil: Karisalankanni Ever noticed those little daisies among the weeds? A small herbaceous plant with flowers that look like tiny replicas of the white daisies and asters. With a white and green centre and hairy white little petals closely arranged. If yes, you are looking at the best ever medicine in Ayurved for growing good hair. Commonly called in English as false daisy, Bhringaraj or Eclipta prostrata is considered to be an all in one solution for hairfall, hair growth as well as for a good black colour and texture for hair. Wherever the moms know it, they make special oils for daughters by cooking coconut oil with a paste of bhringaraj leaves, for good hair growth. Bhringaraj is a commonly used ingredient in commercial ayurvedic hair oils as well. But the plant is such a common plant that anybody who has the slightest interest in plants would not miss those tiny little white flowers that grow among weeds in moist places. The plant flourishes at places which are always moist – near paddy fields, drains, and in kitchen backyards ...