Gold historically tends to have an inverse relationship with the US Dollar, because it's priced in USD, and low dollar confidence leads to more investment in gold.

Source: https://seekingalpha.com/article/4587766-argonaut-gold-darkest-before-the-dawn?source=feed_all_articles

There is good evidence that an inverse relationship exists between “forest management” and carbon storage with greater carbon losses due to logging and thinning, and a consequent increase in carbon emissions.

Source: https://www.counterpunch.org/2023/02/15/oregons-blue-mountains-opportunities-for-carbon-storage-and-wildlands-preservation/

With the inverse relationship between bond prices and yields, bonds now offer an appealing value proposition, especially given present challenges.

Source: https://seekingalpha.com/article/4617030-adam-abbas-fixed-income-market-commentary-q2-2023?source=feed_all_articles