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Monthly DNA
20 Aug, 2025
16 Min Read
The Colorado River is currently facing a significant crisis as its flow continues to diminish, creating a highly competitive environment among the states that rely on its water for various purposes, including agriculture, industry, and drinking water.
The Colorado River is one of the most important and iconic rivers in North America, playing a crucial role in supplying water to millions of people and various ecosystems.
Origin: It rises in the Rocky Mountains of Colorado, USA and flows westward and southward, eventually draining into the Gulf of California in Mexico.
Length: The river flows for about 1,450 miles (2,330 kilometers), cutting through several U.S. states and parts of Mexico.
Importance: It provides water to over 40 million people across seven U.S. states (Colorado, Wyoming, Utah, New Mexico, Arizona, Nevada, and California) and two Mexican states (Sonora and Baja California).
Lakes and Reservoirs: The river forms several major reservoirs, such as Lake Mead and Lake Powell, which are critical for water storage and electricity generation in the Southwest U.S.
Tributaries: It is fed by several significant tributaries, including the Green River, San Juan River, Gunnison River, and Little Colorado River, among others.
Grand Canyon: One of the river’s most famous features is its creation of the Grand Canyon, one of the world's most iconic landscapes and a UNESCO World Heritage Site.
Diminishing Flow:
The river's flow has been steadily diminishing due to a combination of factors such as climate change, overuse, and droughts. This is causing concerns about the long-term sustainability of water resources in the region, which are already strained.
Competition for Water:
The diminishing flow of the river is leading to intense competition among the seven U.S. states that rely on its water. These states are in negotiations to secure future water rights, and many of them are increasingly worried about the reduced availability of water for their residents, industries, and agriculture.
Legal Disputes and Water Rights:
The allocation of the river’s water is governed by a complex system of compacts, treaties, and legal agreements. With the diminishing flow, there are ongoing disputes about water rights, as states try to protect their entitlements while dealing with the reality of less water.
Impact of Climate Change:
Climate change is exacerbating the situation by causing more frequent and severe droughts in the region, further reducing the river’s flow. As a result, snowpacks in the Rocky Mountains, which are a key source of water for the river, have been declining in both volume and consistency, further contributing to the river’s reduced flow.
International Impact:
The river also forms an international boundary between the U.S. and Mexico for about 29 kilometers. The water scarcity issues are affecting both countries, with Mexico also seeking a fair share of the dwindling resource. The Colorado River Compact agreements, signed between the U.S. and Mexico, are being tested by the reduced flow, potentially affecting both nations.
Source: THE HINDU
Nehru Zoological Park, Hyderabad is set to establish a Biosafety Level-3 (BSL-3) laboratory, making it the first of its kind in southern India. This new addition will enable the rapid diagnosis, post-mortem analysis, and research on zoonotic diseases .The diseases that can be transmitted between animals and humans.
Biosafety levels (BSL) define the safety precautions and containment protocols required for handling infectious agents in laboratory settings. These levels are critical to ensuring the safety of both laboratory personnel and the environment.
There are four primary biosafety levels:
BSL-1 (Low Risk):
Risk: Low-risk microbes that pose little to no threat to healthy humans.
Precautions: Basic safety practices like handwashing and wearing protective equipment.
Common Use: Research with non-infectious or minimally hazardous microbes.
BSL-2 (Moderate Risk):
Risk: Agents that cause human diseases and pose a moderate risk.
Precautions: Work with these microbes requires controlled access, protective gear, and safety equipment.
Common Use: Research with pathogenic organisms that can cause illness but are treatable.
BSL-3 (High Risk):
Risk: Indigenous or exotic microbes that can cause serious or potentially fatal diseases through inhalation.
Precautions: These labs are tightly controlled, with enhanced containment systems, sealed containers, and specific protocols for handling dangerous pathogens.
Common Use: Research into more dangerous zoonotic diseases like tuberculosis, West Nile virus, SARS, and other potentially fatal microbes.
BSL-4 (Extreme Risk):
Risk: Highly dangerous and exotic pathogens, often with no known cure or vaccine (e.g., Ebola, Lassa fever).
Precautions: Highest level of containment, with specialized suits and strict access controls. These labs are rarely found due to the extreme nature of the organisms they study.
The establishment of the BSL-3 lab at Nehru Zoological Park will help in the study and management of zoonotic diseases—those that can jump from animals to humans. It will also improve response capabilities when such diseases appear in wildlife populations, providing timely information for both public health and conservation efforts.
Rapid Diagnosis: A BSL-3 lab will allow the park’s researchers to quickly identify zoonotic pathogens, enabling faster responses to potential outbreaks.
Post-mortem Analysis: The lab will support post-mortem studies to determine the cause of death in animals, which is critical for wildlife conservation efforts and preventing disease transmission.
Zoonotic Disease Research: By studying diseases that can be transmitted between animals and humans, scientists can help mitigate the risk of zoonotic disease outbreaks, such as the COVID-19 pandemic, which is believed to have originated from animals.
Source: INDIAN EXPRESS
Recent research in the Western Ghats of Kerala has led to the discovery of two new species of freshwater crabs, Kasargodia sheebae and Pilarta vaman. These species have been described as part of the Gecarcinucidae family, which includes various species of freshwater crabs found in South Asia.
New Genus and Species:
Kasargodia sheebae is a new genus of freshwater crabs, with the name Kasargodia deriving from the Kasargod district in northern Kerala.
Pilarta vaman is the second species, named after the Vaman avatar of Vishnu, reflecting its small size.
Distinct Physical Features:
Kasargodia sheebae is characterized by a brownish-orange carapace (the hard shell of the crab) with numerous black spots. The limbs that bear its claws are also orange with black spots.
Pilarta vaman has a more quadrate-shaped carapace and is notably small, aligning with the reference to the Vaman avatar of Vishnu, which symbolizes a small form.
Geographic Location:
Both species were discovered in the Western Ghats, a biodiversity hotspot in India, specifically in the Kerala region.
Importance of the Discovery:
This discovery contributes to the biodiversity knowledge of the Western Ghats, which is renowned for its rich and varied ecosystems.
These new species highlight the need for conservation efforts in the region, which houses many endemic species.
Source: THE HINDU
The Third United Nations Conference on Landlocked Developing Countries (LLDC3) has recently opened in Awaza, Turkmenistan. This conference, held once every ten years, draws global attention to the 32 landlocked developing countries (LLDCs), which collectively house over 600 million people. The primary aim of this conference is to facilitate international coordination in overcoming the persistent challenges these countries face, particularly related to trade, infrastructure, and economic diversification.
The LLDC3 conference seeks to address and resolve the various structural challenges that landlocked countries experience due to their lack of direct access to seaports. The core challenges faced by LLDCs include:
Barriers to Trade: Without access to seaports, landlocked countries face higher transportation costs and lengthy trade routes, which complicates the movement of goods and services.
Economic Diversification: Landlocked countries often struggle with limited economic diversification due to these transportation barriers, which impact their ability to access global markets.
Infrastructure Development: The lack of coastline and seaport facilities limits the development of key infrastructure, particularly in transportation and logistics.
The theme of the LLDC3 conference, “Driving Progress through Partnerships”, emphasizes the importance of collaboration between governments, international organizations, the private sector, and civil society. This year’s conference aims to explore actionable solutions by:
Building Smarter Investment Frameworks: Encouraging international investments to improve transportation infrastructure and economic systems in LLDCs.
Developing Efficient Transport Corridors: Enhancing the movement of goods and services by improving the transport connectivity and transit systems in landlocked countries, making trade more efficient and affordable.
A key highlight of LLDC3 is the Awaza Programme of Action (APoA), which will guide international efforts over the next decade. Adopted by consensus at the UN General Assembly in December 2024, the APoA is a comprehensive framework designed to tackle the persistent development challenges faced by LLDCs. The programme focuses on five interconnected priority areas:
Structural Transformation, Science, Technology, and Innovation:
Promoting economic diversification through innovation, modernizing infrastructure, and improving the technological capabilities of LLDCs.
Trade, Trade Facilitation, and Regional Integration:
Facilitating better trade flows through regional cooperation, harmonizing trade policies, and improving trade facilitation measures.
Transit, Transport, and Connectivity:
Improving transport infrastructure to create seamless and cost-effective trade routes that connect LLDCs with global markets. This includes enhancing cross-border transportation networks, port facilities, and logistical infrastructure.
Enhancing Adaptive Capacity, Strengthening Resilience, and Reducing Vulnerability:
Focus on climate resilience and disaster risk reduction strategies, ensuring that LLDCs are better prepared for environmental challenges that impact their agricultural and economic systems.
Implementation, Follow-up, and Monitoring:
Establishing systems for monitoring progress and ensuring that the objectives of the APoA are being met through regular reviews and follow-up mechanisms.
Landlocked countries face some unique development barriers, including:
High Trade Costs: The absence of seaports means goods must be transported across multiple countries, increasing logistical and customs clearance costs.
Geopolitical Risks: LLDCs often rely on neighboring countries for access to seaports, making them vulnerable to geopolitical tensions or border disputes.
Limited Access to Global Markets: Without direct access to sea trade routes, LLDCs are disadvantaged in terms of export competitiveness and global market access.
The LLDC3 conference offers a crucial platform for mobilizing international support, and through partnerships, it aims to bring together key stakeholders from across the world to find practical solutions to these long-standing challenges. The conference will foster collaboration between governments, the private sector, and international development organizations to ensure that landlocked countries can break free from the economic and infrastructural barriers they face.
India, which has historically supported landlocked countries through trade, development aid, and regional cooperation, can play a crucial role in helping LLDCs by:
Sharing expertise in infrastructure development, trade facilitation, and agricultural innovation.
Strengthening regional trade through initiatives like South Asian Association for Regional Cooperation (SAARC) and BIMSTEC.
Expanding partnerships with LLDCs in areas like science, technology, and climate resilience.
India's growing influence in the Asia-Pacific and Indian Ocean regions provides it with a unique opportunity to contribute to the success of LLDC3’s objectives and create long-term partnerships that benefit both India and its landlocked neighbors.
The LLDC3 conference and the Awaza Programme of Action (2024–2034) mark a significant step toward overcoming the challenges faced by landlocked developing countries. By focusing on partnerships, trade facilitation, and transport connectivity, the conference aims to drive economic growth and sustainable development in these nations.
Source: THE HINDU
In a rare and significant move, the Muthuvan tribe has organized a three-day special conference as part of the International Day of the World’s Indigenous Peoples. The event has taken on the important mission of protecting their language and culture in the face of modern challenges.
The Muthuvan tribe, also known as Mudugars, primarily inhabits the border hill forests of Kerala and Tamil Nadu. The tribe is divided into two distinct groups, each speaking slightly different dialects, hence they refer to each other as Malayalam Muthuvan and Pandi Muthuvan.
The Muthuvans are known for their deep understanding of the hills and the wildlife that they coexist with. Their expertise in utilizing traditional knowledge enables them to live harmoniously in the dense forests.
They possess a wealth of traditional medicinal knowledge, particularly in herbal medicine, which is handed down through generations. The medicine men or healers in the community carefully guard and preserve this knowledge, which is confidentially passed on within the tribe.
The Muthuvan society is structured around six clans called Koottams, and each Koottam is further divided into sub-clans. These divisions help manage marriage alliances, uphold social status, and maintain ancestral lineage.
Community endogamy (marriage within the tribe) and clan exogamy (marriage outside one’s clan) are practiced.
A unique form of governance called the Kani System is followed, wherein each village is governed by a Kani, a leader responsible for the administration and dispute resolution in the village. The Kani system is also responsible for maintaining the tribal moral standards, with punishments imposed for breaking traditions.
The Muthuvan tribe practices animism, worshipping spirits and the forest gods. They believe that their ancestors, the first migrants to the hill forests, continue to protect and watch over them.
Their spiritual practices are deeply rooted in nature, and they maintain a strong connection with their ancestral land and natural surroundings.
Virippukrishi, a form of shifting cultivation, is their traditional means of livelihood. They grow a variety of food crops, which are consumed only within the community.
Principal crops include:
Ragi (Little Millet)
Maize (Sorghum)
Thina (Italian Millet)
Varagu, Chama Rice, Tomato, Carrot, Sweet Potato, Potato, Cheeni Vala, Toppi, and Mocha.
The recent three-day conference organized by the Muthuvan community is a strategic effort to protect their language and cultural heritage. As a community facing challenges from modernization, language erosion, and displacement, this convention is a critical platform for:
Revitalizing the Muthuvan dialects and ensuring that they are passed down to future generations.
Strengthening cultural practices by incorporating them into daily life and community activities.
Promoting the preservation of traditional knowledge on medicine, agriculture, and governance systems, which are under threat from globalization and external influences.
Source: PIB
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