### Climate Controversy Classification Model

Here is a description of the second model, which classifies the controversies:

**Model Description:**

This model is the second stage in the ClimateControversyBERT pipeline. It is a ClimateBERT-based model fine-tuned to classify climate-related controversies into one of three predefined categories:

*       **Brown Projects:** Controversies where corporations directly contribute to environmental harm (e.g., fossil fuel extraction, deforestation).

*       **Misinformation:** Intentional or misleading disclosures that misrepresent a company’s environmental performance (e.g., inflated fuel efficiency claims, understated emissions).

*       **Ambiguous Actions:** Controversies where corporate climate-related efforts are insufficient, inconsistent, or misaligned with stated commitments.

The model takes as input paragraphs that have been identified as controversial by the upstream ClimateControversyBERT model and assigns them to one of these three categories.

**Key Features:**

*       Built on ClimateBERT, ensuring domain-specific expertise.

*       Fine-tuned using annotated training sentences categorized by controversy type.

*       Achieves a high F1 score in distinguishing between controversy types.

**Intended Use:**

This model is intended to provide detailed insights into the nature of climate-related controversies, enabling stakeholders to better understand the specific ways in which companies may be falling short of their climate commitments. This supports more informed investment decisions, regulatory oversight, and corporate governance practices.