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Project: Analyzing Industry Carbon Emissions

Photo by Maxim Tolchinskiy on Unsplash

When factoring heat generation required for the manufacturing and transportation of products, Greenhouse gas emissions attributable to products, from food to sneakers to appliances, make up more than 75% of global emissions. -The Carbon Catalogue

Our data, which is publicly available on nature.com, contains product carbon footprints (PCFs) for various companies. PCFs are the greenhouse gas emissions attributable to a given product, measured in CO2 (carbon dioxide equivalent).

This data is stored in a PostgreSQL database containing one table, prouduct_emissions, which looks at PCFs by product as well as the stage of production that these emissions occurred. Here's a snapshot of what product_emissions contains in each column:

product_emissions

fielddata type
idVARCHAR
yearINT
product_nameVARCHAR
companyVARCHAR
countryVARCHAR
industry_groupVARCHAR
weight_kgNUMERIC
carbon_footprint_pcfNUMERIC
upstream_percent_total_pcfVARCHAR
operations_percent_total_pcfVARCHAR
downstream_percent_total_pcfVARCHAR

You'll use this data to examine the carbon footprint of each industry in the dataset!

Spinner
DataFrameavailable as
most_recent_date
variable
-- Find the most recent date
SELECT MAX(year)
FROM product_emissions
Spinner
DataFrameavailable as
carbon_emissions_by_industry
variable
-- Complete the query
SELECT industry_group, 
COUNT(*) AS num_companies, 
ROUND(SUM(carbon_footprint_pcf), 1) AS total_industry_footprint
FROM product_emissions
GROUP BY industry_group, year
HAVING year = 2017
ORDER BY total_industry_footprint DESC