El Niño, a climate phenomenon characterized by the warming of sea surface temperatures in the central and eastern Pacific Ocean, does contribute significantly to unusual climatic happenings, but it is not the sole factor.

1. Impact of El Niño: El Niño can cause dramatic weather changes, such as increased temperatures, altered precipitation patterns, and more intense storms in various regions. For example, it often leads to severe droughts in Australia and heavy rainfall in the western coast of South America.
2. Complex Interactions: Climate is influenced by multiple factors beyond El Niño, including La Niña (its counterpart), greenhouse gas emissions, and natural variability. These elements interact in complex ways, making it difficult to attribute unusual weather events to El Niño alone.
3. Regional Variability: The impact of El Niño varies regionally, and while it can exacerbate certain weather patterns, it is part of a broader set of climate drivers.

Thus, while El Niño plays a crucial role in influencing climatic anomalies, it is part of a complex system of factors affecting global weather patterns.