Climate Change & Conventions

Congo Basin Peatlands: The Congo Basin in Central Africa is home to the world's largest tropical peatland complex. This vast peatland stores an immense amount of carbon, estimated to be equivalent to about three years of global fossil fuel emissions.  Importance of Peatlands: Peatlands are a critical carbon sink. They store more carbon than all the world's forests combined. When peatlands are drained or degraded, this stored carbon is released into the atmosphere, contributing to climate change. The Republic of Congo, the Democratic Republic of Cong and Indonesia are parties to the Brazzaville Declaration, aimed at protecting the Cuvette Centrale region in the Congo Basin, the world’s largest tropical peatlands, from unregulated land use and preventing its drainage and degradation.  _Other Options:_  * Amazon Basin: While the Amazon is known for its vast rainforests, it is not the primary location of the world's largest tropical peatland. * Kikori Basin: The Kikori Basin is located in Papua New Guinea and contains significant peatlands, but not the largest tropical peatland complex. * Rio de la Plata Basin: This basin in South America is primarily known for its grasslands and is not associated with major peatland areas.

Statement 1 is incorrect. Insolation reaches the earth's surface in short waves and heat is radiated from the earth in long waves, Hence energy leaving the earth's surface i.e. terrestrial radiation heats up the atmosphere more than the incoming solar radiation i.e. insolation. Statement 2 is correct. Greenhouse gases in the atmosphere (such as water vapour and carbon dioxide) absorb most of the Earth's emitted longwave infrared radiation, which heats the lower atmosphere.

* Statement-I: Correct. The European Parliament indeed approved the Net-Zero Industry Act in March 2023. This act aims to scale up manufacturing of clean technologies within the EU. * Statement-II: Incorrect. The EU's target for achieving carbon neutrality is 2050, not 2040. Additionally, while the EU aims to bolster its own clean technology production, it doesn't necessarily aim to develop all of its own technology by 2050. Collaboration and some level of imports are likely to remain part of the strategy. Therefore, the correct option is (C): Statement-I is correct, but Statement-II is incorrect.

100 Million Farmers: The 100 Million Farmers initiative, launched by The World Economic Forum (WEF), seeks to drive a global movement focused on accelerating the adoption of regenerative agriculture and climate adaptation practices at the farm level. This initiative aims to transition towards sustainable food and water systems. It focuses on achieving net-zero carbon emissions, enhancing nature positivity, and improving farmers' resilience to climate change and market fluctuations. _Let's look at why the other options are incorrect:_ *  Option B: This describes organizations promoting organic animal husbandry, not the '100 Million Farmers' initiative. *  Option C: This refers to a blockchain-based platform for fertilizer trading, which is not the core focus of '100 Million Farmers.' *  Option D: While farmer collectives are important, '100 Million Farmers has a broader scope encompassing sustainable practices and climate resilience.

* Green hydrogen is the hydrogen produced through electrolysis of water using electricity from renewable sources. * Green hydrogen is expected to play a significant role in decarbonizing all three of the mentioned heavy industries. * Green hydrogen can be used in the production of ammonia, which is a key component for many fertilizers. Fertilizer production is energy-intensive and often relies on fossil fuels, particularly natural gas. By using green hydrogen as a clean energy source, the carbon emissions from this industry can be significantly reduced * Green hydrogen can be used in oil refineries to process crude oil into various products, including gasoline, diesel, and jet fuel. This can help to reduce the carbon emissions from the refining process. * The steel industry is one of the largest industrial emitters of carbon dioxide. Green hydrogen can be used in place of coal in the steelmaking process, significantly reducing the industry's carbon emissions.

Out of the above substances, hydrofluorocarbons (HFCs) are used in the making of:  1. Aerosols HFCs were historically used as propellants in aerosol cans, but their use is being phased out due to environmental concerns. 2. Foam agents Some types of fire-fighting foam agents use HFCs. 3. Fire retardant HFCs can be a component in some fire retardant formulations. 4. Lubricants typically do not contain HFCs. They use different chemical formulations to achieve lubricating properties.

All three activities mentioned are indeed methods often considered and discussed for carbon capture and sequestration. * Spreading finely ground basalt rock on farmlands extensively is known as enhanced weathering. The basalt reacts with carbon dioxide in the atmosphere and forms stable carbonates, effectively storing the carbon dioxide and preventing it from contributing to global warming. * Increasing the alkalinity of oceans by adding lime can help absorb more carbon dioxide from the atmosphere. The increased alkalinity enhances the ocean's capacity to act as a carbon sink. * Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters is a direct method of carbon capture and sequestration where carbon dioxide is captured at its source and then stored in a way that prevents it from being released into the atmosphere.

* Carbon markets, which include mechanisms like cap-and-trade systems and carbon offsets, are increasingly being used as a tool to incentivize emissions reductions and help in the fight against climate change. So, statement 1 is true. * Carbon markets typically work by transferring resources from emitters (usually in the private sector) to entities that can reduce or remove greenhouse gas emissions, which can be either private entities or the government. So, statement 2 can also be true.

Methane and nitrous oxide emissions from rice farms could have the same long-term warming impact as about 600 coal plants. Rice cultivation emits methane and nitrous oxide due to flooded fields and nitrogen-based fertilizers. Flooding creates anaerobic conditions, producing methane released through rice plants. Fertilizers poorly absorbed by rice lead to soil microbes converting nitrogen into nitrous oxide.

Urban Forests use the Miyawaki method to create urban forests. Miyawaki urban forests are fascinating complex ecosystems, in balance with today's soil and climate conditions. This technique works worldwide irrespective of soil and climatic conditions. Over 2000 forests were successfully created using this method. Doctor Akira Miyawaki, botanist and professor, is the inventor of the technique since 1980. He is a recipient of the 2006 Blue Planet Prize, which is the equivalent of a Nobel Prize in ecology.