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बन डढेलो र अमेजन

वन र डढेलो हालैका दशकमा वन डढेलोको बारेमा निकै नै चर्चा हुने गरेको छ । अमेरिका, क्यानडा, युरोप र अष्ट्रेलियामा सुक्खा मौसममा लाग्ने वन डढेलोको खबर विश्वभरिकै सञ्चारमाध्यमहरुमा प्रकाशित हुने गरेको छ । केही समयदेखी अमेजनको जंगलमा निरन्तर लागिरहेको वन डढेलोको अन्तराष्ट्रिय चर्चा चुलिएपछी फेरी वन डढेलोको वातावरणीय असरहरु सम्बन्धी छलफल बाक्लिएको छ । सामाजिक सञ्जालमा त अमेजनको लागी प्रार्थना गरौँ भन्ने जस्ता ह्यासट्यागहरुले राम्रै स्थान पाइरहेका छन् । तत्कालीक रुपमा वातावरण र पारिस्थिकिय प्रणालीमा नकारात्मक असर गर्ने भएता पनि वनबिज्ञहरुले वन डढेलोलाइ वनको पारिस्थितिकिय प्रणालीकै एक अवस्थाको रुपमा व्याख्या गर्ने गरेका छन् । वन तथा पारिस्थितिकिय प्रणालीहरुको व्यवस्थापनको विभिन्न चरणहरुमा नियन्त्रित डढेलोलाइ नै यौटा ‌औजारको रुपमा नै विश्वभरि प्रयोग गर्ने प्रचलन रहेको हुँदा वन बिज्ञानमा यसलाइ असल नोकर र खराब मालिक (Fire is a good servant but a bad master) भनेर पनि व्याख्या गर्ने गरिएको छ । कतिपय पारिस्थितिकिय प्रणालीको स्वस्थ विकासको लागी निश्चित समयमा वन डढेलो लाग्नु वा लगाउनु फाइदाजनक हुन...

NASA launches SERVIR-Himalaya Programme with ICIMOD

The SERVIR-Himalaya system has been launched on 5 th October 2010, by Mr. Charles F. Bolden Jr., NASA Administrator, and Mr. Michael Yates, Senior Deputy Assistant Administrator of USAID in Kathmandu. The launch had been held on the occasion of the international symposium, 'Benefiting from Earth Observation: Bridging the Data Gap for Adaptation to Climate Change in the Hindu Kush-Himalayan Region' , which started on 4 th October. SERVIR is an earth observation, monitoring, and visualisation system that integrates satellite and other geospatial data as a contribution to improved scientific knowledge to support decision-making by managers, researchers, students, and the general public. Initiated by NASA and USAID, SERVIR has been recognised by the Group on Earth Observations (GEO), as an early achiever of the GEO vision.

Innovation: Can technology persuade us to save energy?

If technology is to save us from climate change, it has some tough challenges to master: taming wave, wind and sun, cheaply scrubbing carbon dioxide from the air or mastering fusion. But a growing number of people think another should be added to the list: mastering human nature. This "persuasive technology" would sway people to adopt less polluting behaviour and may come in the form of new gadgets and online services or new features for existing technology. Energy savings from behavioural change can be dismissed as advanced marketing techniques and may seem trivial compared with the esoteric materials science that is needed to harvest solar energy more efficiently. But there is much to be gained. Last week New Scientist reported that US emissions could be cut by more than 7 per cent if people changed their ways at home. Separate studies in US, Dutch and British homes have reported that 26 to 36 per cent of domestic energy use is "behavioural" – determined by the wa...