Tag: Rainwater harvesting

According to scientific analysis, rainwater is not pure H₂O and can contain a variety of dissolved minerals, including calcium. While the concentration is typically very low, atmospheric dust particles and industrial emissions can introduce calcium into the water before it even reaches the ground.

According to a 2022 study published in *Environmental Science and Technology*, rainwater almost everywhere on Earth is now considered unsafe to drink due to the presence of "forever chemicals" (PFAS). This critical finding challenges the common assumption that it is good to drink rain water from the sky and underscores the importance of proper treatment.

With proper treatment, rainwater can be stored for extended periods. However, how long can you keep rain water depends on how it is stored and its intended use, such as drinking or watering plants.

While rainwater is technically distilled water high in the atmosphere, it quickly collects pollutants as it falls and is stored. So, is rainwater better for you than tap water for drinking? The surprising reality is that municipal tap water is far more reliable for consumption.

Green water, in its various forms, plays a critical ecological role, with microalgae cultures providing a natural food source and bioremediation for farmed aquatic life. In contrast, green water in agriculture refers to rainwater absorbed by soil, highlighting its importance for crops. This concept of 'green water' extends beyond a simple algae bloom, representing a valuable resource in diverse contexts.

Globally, 1.1 billion people still lack access to clean, safe drinking water, making rainwater an important resource for many. But is there any benefit to drinking rainwater directly, and is it a practice without risks?

Over 40% of the world's population is already affected by water scarcity, a figure that highlights the critical need for sustainable water management strategies. Understanding what is an alternative source of water is crucial for both communities and individuals to build resilience against diminishing traditional supplies and the impacts of climate change.

According to UN-Water, only 0.5% of water on Earth is useable and available freshwater, a supply increasingly endangered by climate change. For billions, the answer to what is your main source of water is complex and depends heavily on geography, infrastructure, and environmental conditions.