As I unerstand now tokens are not available for sale. The botton to buy tokens on the website is not active.
But airdrop is a good reason to attract the attention of the community to the project before the token sale.
I checked their webite there is such information on it
CLIME Pre-Sale is coming soon, stay tuned to our social media and don't miss the chance to participate in our airdrop promotion.
That is why the buttun CLIME is not active.
It is better to check all the information about CLIME Finance in their social networks to know more about development of the project.
You can check all the news of the project in their twitter.