keyword

biggest source of co2

Monthly search volume and cost-per-click data for "biggest source of co2" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=biggest+source+of+co2&country=us" +--------------+------------------+ | volume | 90 | | cpc | $0 | | competition | 0.01 | | country | US | | updated | 2026-06-19 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
co2 emissions by source	1,300	$7.92	20/20
sources of carbon emissions	1,300	$7.26	13/20
highest source of carbon emissions	110	$2.99	14/20
carbon dioxide emissions by source	70	$0	13/20
carbon dioxide emissions sources	70	$0	13/20
what produces the most co2	70	$0	13/20
largest sources of co2 emissions	50	$0	14/20
main sources of co2 emissions	50	$0	13/20
what causes the most co2 emissions	50	$0	13/20
largest carbon emission sources	30	$0	13/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=biggest+source+of+co2&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt