# HNSUS02-BP02 Perform lifecycle assessments for sustainability trade-offs
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 Evaluate the environmental impact of architectural decisions (for example, regional placement, instance types, storage classes). Compare trade-offs between performance, cost, and sustainability. 

 **Desired outcome:** Informed decisions that balance business needs with environmental responsibility. 

 **Level of risk exposed if this best practice is not established:** Low 

 **Benefits of establishing this best practice:** 
+  Identifies opportunities to reduce carbon footprint without compromising functionality 
+  Supports ESG reporting and transparency 

## Implementation guidance
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+  Use tools, such as the [AWS Customer Carbon Footprint Tool](https://aws.amazon.com/blogs/aws/new-customer-carbon-footprint-tool/), to measure emissions 
+  Prefer regions powered by renewable energy 
+  Consider more efficient resources, such as Graviton-based instances 

## Resources
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+  [AWS Customer Carbon Footprint Tool](https://aws.amazon.com/sustainability/tools/aws-customer-carbon-footprint-tool/)[AWS Graviton Processor](https://aws.amazon.com/pm/ec2-graviton/) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for AWS Well-Architected. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query wellarchitected` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).