Question 33 from UPSC CSE 2017 - Environment

Question

It is possible to produce algae-based biofuels, but what is/are the likely limitation(s) of developing countries in promoting this industry?
1. Production of algae-based biofuels is possible in seas only and not on continents.
2. Setting up and engineering the algae-based biofuels production requires a high level of expertise/technology until the construction is complete.
3. Economically viable production necessitates the setting up of large-scale facilities which may raise ecological and social concerns.
Select the correct answer using the code given below:

IASCODEX · Accepted Answer

Correct Option: B. 2 and 3 only

Strategy: Evaluate the three statements to identify the correct limitations of algae biofuels in developing countries.
- **Statement 1:** Dismiss as factually incorrect. Algae can be cultivated in diverse environments, including freshwater, wastewater, and land-based systems, not just seas.
- **Statement 2:** Accept as correct. The technology is advanced and requires significant expertise, posing a major challenge for developing countries.
- **Statement 3:** Accept as correct. Large-scale operations needed for economic viability can lead to significant ecological and social concerns.
The correct limitations are therefore identified as statements 2 and 3.

Key Info: Algae-based biofuels are a promising alternative energy source due to algae's high growth rates and lipid content. However, several limitations hinder their widespread adoption, especially in developing countries:

**Algae Cultivation**
Algae can be grown in diverse environments, not exclusively in seas. They thrive in fresh water, brackish water, saltwater, and even wastewater. Cultivation methods include open pond systems and closed photobioreactors, both of which can be implemented on land.

**Technological and Expertise Requirements**
Algae-based biofuel production is capital-intensive and requires high levels of scientific and engineering expertise. This includes specialized knowledge in strain selection, genetic modification, bioreactor design, nutrient optimization, harvesting techniques, and downstream processing. Developing countries often lack the necessary infrastructure, skilled personnel, and research capabilities to establish and maintain such advanced facilities.

**Economic Viability and Scale**
To be economically competitive, algae biofuel production must achieve massive scales, requiring large land areas, significant water resources, and substantial capital investment. Large-scale operations can raise:
* **Ecological Concerns:** Potential impacts on biodiversity, water depletion, nutrient runoff, and competition for land or water with agriculture.
* **Social Concerns:** Land acquisition issues, potential displacement of communities, and competition for resources critical for food security.

**Cost of Production**
The cost of producing algae biofuels remains higher than conventional fossil fuels, primarily due to high energy inputs for cultivation, harvesting, and processing, as well as the initial capital investment.

Developing countries face significant hurdles in overcoming these technological, economic, and logistical challenges to scale up algae biofuel production.

IASCODEX · Answer

Option A: 1 and 2 only

IASCODEX · Answer

Option C: 3 only

IASCODEX · Answer

Option D: 1, 2, and 3