The growing of tea invariably replaces biodiversity-rich tropical forests with a beautiful, but single species (monoculture). Soil erosion, competition for water, pollution from fertilizers and the requirement of firewood to fuel tea driers, are some of the main environmental concerns that accompany commercial tea cultivation.

By following the Sustainable Agriculture Network Standard, tea growers can pro-actively address social and environmental challenges. By complying with the requirements of this standard, tea estates can obtain "Rainforest Alliance Certification".

It is a well-known fact, that worldwide thousands of plant species are endangered and facing extinction with the
current trend of their exploitation and destruction. In recent years, there is a growing awareness concerning the impact
of temperature rise, industrialization, desertification and shift in the growing seasons of plants, loss of pollinators,
seed dispersers and increasing frequency of intense weather events such as drought, storms and floods making several valuable plants extinct.
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This correspondence refers to a recent note about monitoring alpine treeline in the Western Himalaya and few other
recent studies on the same aspect. Alpine zones in the Himalayas are the highest vegetation zones where seedbearing plants are found, but tree growth is excluded. Upper and lower boundaries of alpine zones are traditionally set as

It's chemistry's greatest challenge – inventing systems that turn water and sunshine efficiently into cheap, clean energy for all.

In the Neotropics the predominant pathway to intensify productivity is generally thought to be to convert grasslands to sown pastures, mostly in monoculture. This article examines how above-ground net primary productivity (ANPP) in semi-natural grasslands and sown pastures in Central America respond to rainfall by: (i) assessing the relationships between ANPP and accumulated rainfall and indices of rainfall distribution, (ii) evaluating the variability of ANPP between and within seasons, and (iii) estimating the temporal stability of ANPP.

In the absence of any viable regulatory mechanism for gene technology, the Supr-eme Court has set up a six-member expert committee to monitor field trials on certain crops using genetically-modified organisms. The panel. which has three months to submit its rep-ort, will ensure that the open tests do not have any adverse impact on the traditional crops, flora and fauna due to the release of harmful GMOs into the atmosphere.

Fire erupted on Margalla Hills at two points on Wednesday, gutting a huge stretch of forest area, besides affecting flora and fauna.

The area under forest cover in Karnataka has increased by four square kilometres, according to a latest report of the Forest Survey of India. It says the change has been noticed in the assessment year of 2009, compared to the survey carried out in 2008. The report was put in the public domain recently.

Sources in the State government told The Hindu that the change for the better was being seen for the first time in about a decade. What was noteworthy was that at a time when forests were being “plundered in terms of their flora and fauna and conservationists facing a tough challenge,” the increase, though negligible, marks a refreshing change.”

It is critical to assess the effectiveness of the tools used to protect endangered species. The main tools enabled under the U.S. Endangered Species Act (ESA) to promote species recovery are funding, recovery plan development and critical habitat designation. Earlier studies sometimes found that statistically significant effects of these tools could be detected, but they have not answered the question of whether the effects were large enough to be biologically meaningful.

Plants are flowering faster than scientists predicted in response to climate change, research in the United States showed on Wednesday, which could have devastating knock-on effects for food chains and ecosystems.

Global warming is having a significant impact on hundreds of plant and animal species around the world, changing some breeding, migration and feeding patterns, scientists say.

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